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Thread: Audi R4 Etron twin turbo diesel spyder

  1. #1
    Moderator RXBG's Avatar
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    Audi R4 Etron twin turbo diesel spyder

    Past- A4, TT, S4

    Present- R8 V10

  2. #2
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    Diesel are hard to hybridize because of the self combustion. If this drivetrain is a real prototype, we may be looking at the biggest scoop in Paris, as far as everyday technology is concerned.
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    First Audi implementation of the 3.0 TTDI, first Audi diesel-hybrid and probably their best looking prototype in recent years.

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    Registered User Qisha's Avatar
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    Dear Friends,

    did i read about "Audi is always behind... following etc." somewhere?

    Sometimes i am not sure what is more exciting... to know... or not to know...

    Qisha

  5. #5
    Moderator RXBG's Avatar
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    the etron and the new sportquattro. two completely different design languages. i don't know how they are going to sandwich those cars between the TT line, A5/S5 line, and the R8 line. there have been three etron variatons each with a different appearance and a different motor and now the funky retro thing. where is audi going with this?
    Past- A4, TT, S4

    Present- R8 V10

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    Quote Originally Posted by RXBG View Post
    the etron and the new sportquattro. two completely different design languages. i don't know how they are going to sandwich those cars between the TT line, A5/S5 line, and the R8 line. there have been three etron variatons each with a different appearance and a different motor and now the funky retro thing. where is audi going with this?
    Again, I agree with you. etron spyder with biturbo diesel is an awsome concept.

  7. #7
    Registered User darkop's Avatar
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    I think we can read into this concept as a drivetrain/engine showcase, as Qisha noted! So at least an engine from Audi we should crave after on this Salon..
    Am ready to forgive them for not introducing the new V8 (s7/S8) because of these two amazing (more-than) concepts!
    So glad am an Audi fan these moments...

  8. #8
    Registered User Joker's Avatar
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    Now Audi has openly shown a car at a show with a twin turbo v6 diesel (even though it's a concept) will mean that it's only a matter of months rather then years before it will be seen in a production model. As for the diesel/hybrid? Well that's an entirely different matter.

    P.S.
    One of the prettiest concepts ever, regardless of brand.

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    Quote Originally Posted by darkop View Post
    Am ready to forgive them for not introducing the new V8 (s7/S8) because of these two amazing (more-than) concepts!
    The Quattro 30 and eTron Spyder are both fascinating and unique, they made me forget completely about S7/S8. I'm very impressed with Audi's showing in Paris.

  10. #10
    Registered User roadrunner's Avatar
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    Quote Originally Posted by RXBG View Post
    the etron and the new sportquattro. two completely different design languages...where is audi going with this?
    To me, they are not completely different:

    The grill introduced in the original e-tron (Frankfurt) evolved into e-tron II (Detroit) and further into e-tron Spyder (Paris). The quattro concept is quite similar in some aspects as well

    = we see the future Audi "face" evolving. And I like it


    Quote Originally Posted by Joker View Post
    Now Audi has openly shown a car at a show with a twin turbo v6 diesel (even though it's a concept) will mean that it's only a matter of months rather then years before it will be seen in a production model
    This year actually. It will be introduced in the next Audi A6 C7 lineup = 300 HP / 650 torque = what a diesel biest

    After this double Audi strike at Paris - the competition must be p***ed

    And did I mention, that i the quattro concept

    Audi's future is bright - bring it on
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  11. #11
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    Quote Originally Posted by Zyklon5 View Post
    first Audi diesel-hybrid...
    Google Audi Duo III (1997). "Old" tech.

    Hmm, not sure what I'd want more, this or the new Quattro... damn, nice choice to have!
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  12. #12
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    Audi e-tron Spyder Concept

    Audi presents the Audi e-tron Spyder Concept, the study of an open sports car, at the fall 2010's largest auto show. The show car, with plug-in hybrid drive, is 4.06 meters (13.32 ft) long, 1.81 meters (5.94 ft) wide and only 1.11 meters (3.64 ft) high. The two-seater is equipped with a 221-kW (300-hp) twin-turbo V6 TDI at the rear axle and two electric motors producing a total of 64 kW at the front axle.

    The Audi e-tron Spyder Concept's low total weight of only around 1,450 kilograms (3,196.70 lb) combined with the high-torque TDI and the two electric motors results in respectable performance. The car accelerates to 100 km/h (62.14 mph) in just 4.4 seconds, and top speed is electronically governed at 250 km/h (155.34 mph).

    The Audi e-tron Spyder Concept can combine the powerful torque of its TDI - the diesel engine generates 650 Nm (479.42 lb-ft) and the total of 352 Nm (259.62 lb-ft) of its two electric motors during acceleration in a process known as "boosting."

    The intelligent distribution of power allows for optimal dynamics in every situation. The targeted application of power to the front wheels improves longitudinal dynamics while also improving lateral dynamics when cornering. This is because torque vectoring - the as-needed distribution of torque between the left and right wheels of the two axles - enables an exhilarating degree of driving precision and excellent agility.

    Thanks also to its low weight, short wheelbase and perfect 50:50 weight distribution for dynamic handling, the Audi e-tron Spyder Concept has all the drivability of a go-kart - good on bends and neutral right up to the very high handling limit.


    Audi e-tron Spyder Concept (2010)
    The combination of a highly efficient TDI and electric drive also provides for excellent fuel economy and amazingly low emissions. The Audi e-tron Spyder Concept requires on average just 2.2l diesel/100 km (106.92 US mpg), corresponding to CO2 emissions of 59 g/km (94.95 g/mile). A range of more than 1,000 kilometers is possible with the 50-liter (13.21 US gallons) tank.

    The open sports car can also drive strictly on electric power and thus with zero emissions over distances of up to 50 kilometers (31.07 miles), such as in urban areas. The top speed of 60 km/h (37.28 mph) is just fine for normal driving.

    Design

    The Audi e-tron Spyder Concept features what is without a doubt the most advanced and simultaneously the most consistent evolution of the current Audi design language, while also providing initial hints at the design language of future Audi sports cars. It reinterprets the most important design elements that already characterized the previous e-tron concept vehicles. This also ensures the necessary formal differentiation to the purely electric-powered Audi e-tron shown at the 2010 Detroit Motor Show.

    1.81 meters (5.94 ft) wide, just 4.06 meters (13.32 ft) long and only 1.11 meters (3.64 ft) in height: these are the classic proportions of an open, high-performance sports car. Compared to the coupé concept car in Detroit, the length and width have increased by 13 cm (5.12 in) and 3 cm (1.18 in), respectively, to underscore the sporty aspiration of the design. This further enhanced the powerful and compact overall appearance that characterizes both vehicles and links them to the sportiest production Audi, the R8.

    Due in no small part to the short wheelbase of only 2.43 meters (7.97 ft) - 22 cm (8.66 in) shorter than that of the R8 - the body of the Audi e-tron Spyder Concept comes across as extremely stocky.

    In an apparent homage to motor sports, the frameless side glass surfaces taper downward toward the rear. They form a unit with the windshield, which is strongly bowed and inclined like the visor of a helmet.

    Another element borrowed from race cars characterizes the hood: the wide central air inlet, whose curve further accentuates the dynamics of the car's front end and provides a visual and functional link to the Audi R8 LMS customer race car. The carbon application that is mounted flush in the front and side windows and wraps completely around the glass testifies to the design and manufacturing expertise that went into the car.

    The front the silhouette of the Audi e-tron Spyder Concept are characterized by a sharp, sweeping line that immediately identifies the two-seater as an Audi. The sharply tapered front end lends the Audi e-tron Spyder Concept a distinctly wedge-like basic shape. The trapeze of the single-frame grille dominates the distinctly wedge-shaped front end and is flanked by two large air intakes. They serve as cooling intakes for the electric drive system and also for the TDI engine at the rear of the vehicle.

    Above, the grille merges into the flat strips of the adaptive matrix beam headlight modules with their three-dimensional clear glass covers that follow the contour of the functional elements.

    All light units use ultra-efficient LED technology. As with the R8 and the e-tron sports car concept cars, the trademark four rings are located above the single-frame. Beneath the trademark is the charging station for the batteries. The rings disappear beneath the front hatch, exposing not just the charging plug but also a display showing the charge state and a map graphic indicating the current electric range.

    Another distinctive feature of this show car are the 20-inch wheels, that take the blade design of the first e-tron show car and refine it into a three-dimensional turbine design. The wheels combine the lightweight materials aluminum and carbon into a design that is both visually pleasing and very effective aerodynamically. The 66 individual components comprising each individual wheel of the Audi e-tron Spyder Concept are indicative of just how complex they are.

    The flanks sport familiar contours in a new form. Unusually sharply defined edges frame the smooth side surfaces while simultaneously separating horizontal from vertical areas.

    The shoulder line frames the lines of the strongly contoured wheel wells even more distinctly than in the Audi R8 and combines them with the upper edge of the vehicle body. Particularly when viewed from the back, the Audi e-tron Spyder Concept appears even more pronouncedly horizontal and more strongly oriented toward the road.

    An impression that is also created by the characteristic sills with a new cut and is picked up by the spoiler and diffuser at the front and rear of the car. Carbon elements borrow from motor sports to set special accents here as well. Carbon is also used on the engine cover in the rear and in license plate and lighting frame, which also includes the air outlets below the lateral light units.

    The contrast of materials is reminiscent of a race car. The essential functional elements of the chassis and the vehicle body are done in carbon, while the body as a cover sports a classic paint finish. This illustrates the formal "shell-and-core" principle that defines the Audi e-tron Spyder Concept particularly clearly.

    Thanks to an opening in the hood, even the longitudinal TDI mid-engine is a visible technological element surrounded by matt and glossy carbon surfaces, aluminum and leather. This combination of materials links the exterior with the interior of the vehicle.

    Behind the seats are two cowls that gradually taper toward the rear and also flank the opening for the TDI engine and the implied cooling fins of the engine cover. They also contain the normally hidden rollover bars, which like in the production R8 Spyder shoot up within milliseconds and lock into place in the event of an emergency.

    Interior

    Visual and functional references to the fundamental concept of lightweight construction characterize the purist interior design. They establish a connection between proven Audi genes and new formal hallmarks. Typical for the Audi design idiom is the reduction of the architecture, controls and information output to the essentials in favor of a tidy overall impression.

    The slim dash has a curve that extends laterally into the door panels. With no need to allow for a transmission, shifter and cardan tunnel, the designers again took advantage of the opportunity to create a particularly slim and lightweight center tunnel and convex, arching center console for the Audi e-tron Spyder Concept with hybrid drive. The only control element other than that of the MMI is the flush-mounted selector lever for the automatic transmission, which extends upward from the tunnel when the vehicle is started.

    The cockpit of the Audi e-tron Spyder Concept is also oriented toward the driver - a further characteristic Audi trait. Instead of the classic instrument cluster, the concept car is equipped with a large, display with integrated MMI functions and flanked by two round dials. The MMI can be controlled via a touch-sensitive control panel on the steering wheel - an element inspired by modern smartphones. It can also be controlled via the MMI control unit (MMI touch) on the center console. The steering wheel itself is clearly flattened off at both the top and bottom, in a clear reference to motor sport. Speed is displayed in digital form only. The dial instrument with information about the drive system can be chosen via the menu item "Drive."

    Besides information about the speed, the revs of the combustion engine and the electric drive, the central display also provides all of the key information from the infotainment and system. Characteristic for the concept of the Audi e-tron Spyder is the near total elimination of switches and components such as the ignition. The climate control unit is located to the right above the steering wheel. The display provides temperature and ventilation information. Again drawing inspiration from a smartphone, the system is operated by means of a touch-sensitive control panel.

    The equally racing-inspired lightweight bucket seats combine excellent lateral support with comfort. Contrasting colors and stitching delineate the various zones of the interior. The colors and the high-quality materials combine elegance and sportiness.

    ASF body

    Systematic lightweight construction is a crucial prerequisite for efficiency and range, while also being the primary foundation for exhilarating driving dynamics. The Audi development engineers drew on the core competence of the company for the Audi e-tron Spyder Concept. The body structure is based on Audi Space Frame (ASF) technology and was realized as a hybrid construction, with the hood and numerous aerodynamic components made of carbon.

    In ASF technology, the body's supporting structure is made of extruded aluminum sections and die-castings. Aluminum panels are incorporated into this skeleton to form a positive connection and perform a load-bearing role. Each individual component of the ASF space frame is optimized for its specific task by the use of widely differing shapes and cross-sections, combining maximum stability with minimal weight. Despite the complex drive system layout with two electric motors and their respective drive systems plus the TDI engine, the Audi e-tron Spyder Concept only weighs around 1,450 kilograms (3,196.70 lb).

    Engines and transmissions

    Audi has long proven the perfect synthesis between a highly advanced sports car and TDI technology. With the TT, Audi become one of the first manufacturers anywhere in the world to successfully bring a diesel sports car to market, a decade after the Audi Cabriolet paved the way for diesel engines in this segment. And the Audi R8 TDI Le Mans concept car was the first supercar to be fitted with a twelve-cylinder diesel engine with 500 hp and 1,000 Newton meters (737.56 lb-ft) of torque.

    The Audi e-tron Spyder also draws on this recipe for success - albeit in a revolutionary new combination. This marks the first use of a new generation of the six-cylinder, 3.0 TDI that breathes through two turbochargers and produces 221 kW (300 hp). That is another 50 hp more than the previous stage, which debuted a few months ago in the new Audi A8.

    Peak torque of 650 Newton meters (479.42 lb-ft) is unusually high, even in the sports car segment. The mid-mounted, longitudinal 3.0 TDI engine drives the rear wheels via a seven-speed dual-clutch transmission.

    Another innovation is the coupling of the TDI with the electric drive of the front axle. Two asynchronous electric motors with a total output of 64 kilowatt (88 hp) and peak torque of 352 Newton meters (259.62 lb-ft) combine with the 3.0 TDI to give the Audi e-tron Spyder the performance of a high-performance sports car. It accelerates from 0 to 100 km/h (62.14 mph) in 4.4 seconds. Top speed is electronically governed at 250 km/h (155.34 mph).

    The drive's characteristic is even more exciting than the abstract numbers. Thanks in no small part to the fact that the peak torque of the electric motors is available immediately, the Audi e-tron Spyder Concept accelerates with catapult-like thrust. Short passing maneuvers on interurban roads can be pulled off as spurts that are every bit as relaxed as they are fun, even without having to downshift.

    The noise level of the low-revving TDI is typically low. The six-cylinder unit behind the occupants issues a sonorously sporty growl under load, but never becomes loud. A surprising effect also present in the Le Mans-winning Audi R10 and R15 race cars, which are also powered by TDI engines.

    The benefits of this special form of hybrid drive - the coupling of a high-torque, high-efficiency TDI engine with the electric motors - are by no means limited to the dynamic potential of the Audi e-tron Spyder, however. The open two-seater also sets new standards in its class for fuel consumption and environmental characteristics. The 300-hp TDI consumes on average just 2.2 liters of diesel per 100 kilometers (106.92 US mpg), which corresponds to CO2 emissions of only 59 g/km (94.95 g/mile).

    The full-hybrid Audi e-tron Spyder has also mastered the discipline of zero-emission driving. In residential and other urban areas, the driver can activate the electric drive by itself. The 9.1-kwH battery at the front of the car has enough power for up to 50 kilometers (31.07 miles). And with a top speed of up to 60 km/h (37.28 mph), the Audi e-tron Spyder Concept is also able to move along smartly in city traffic.

    Chassis

    The normal distribution of the tractive power is clearly biased toward the rear axle in accordance with the weight distribution of the Audi e-tron Spyder Concept and the dynamic shift in axle load during acceleration. Similar to with a pure mid-engine sports car, roughly 75 percent of the torque goes to the rear and 25 percent to the front. If an axle slips, this balance can be varied thanks to the central control of the entire drive system in combination with the ESP. The hybrid vehicle from Audi thus enjoys all of the advantages of quattro technology.

    The combination of the mid-mounted TDI engine and the two electric motors at the front axle also make it possible to intelligently control the lateral dynamics of the e-tron.

    Similar to what the sport differential does in conventional quattro vehicles, torque vectoring - the targeted acceleration of individual wheels - makes the Audi e-tron Spyder Concept even more dynamic while simultaneously enhancing driving safety. Understeer and oversteer can be corrected by not only targeted activation of the brakes, but also by precise increases in power lasting just a few milliseconds. The concept car remains extremely neutral even under great lateral acceleration and hustles through corners as if on the proverbial rails.

    The chassis has triangular double wishbones at the front axle and a trapezoidal-link rear suspension made of forged aluminum components - a geometry that has proven in motorsports to be the optimal prerequisite for high agility, uncompromising precision and precisely defined self-steering behavior. A taut setup was chosen for the springs and shock absorbers, but it is still very comfortable.

    The direct rack-and-pinion steering gives finely differentiated feedback. Its electromechanical steering boost varies with speed, so that the Audi e-tron Spyder Concept only has to provide energy while steering, and not while driving straight ahead.

    As befitting its status, the Audi concept car rolls on 20-inch tires with a new blade design. 245/30 tires up front and 265/30 tires in the rear provide the necessary grip.

  13. #13
    Registered User Joker's Avatar
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    Audi e-tron Spyder Concept

    Audi presents the Audi e-tron Spyder Concept, the study of an open sports car, at the fall 2010's largest auto show. The show car, with plug-in hybrid drive, is 4.06 meters (13.32 ft) long, 1.81 meters (5.94 ft) wide and only 1.11 meters (3.64 ft) high. The two-seater is equipped with a 221-kW (300-hp) twin-turbo V6 TDI at the rear axle and two electric motors producing a total of 64 kW at the front axle.

    The Audi e-tron Spyder Concept's low total weight of only around 1,450 kilograms (3,196.70 lb) combined with the high-torque TDI and the two electric motors results in respectable performance. The car accelerates to 100 km/h (62.14 mph) in just 4.4 seconds, and top speed is electronically governed at 250 km/h (155.34 mph).

    The Audi e-tron Spyder Concept can combine the powerful torque of its TDI - the diesel engine generates 650 Nm (479.42 lb-ft) and the total of 352 Nm (259.62 lb-ft) of its two electric motors during acceleration in a process known as "boosting."

    The intelligent distribution of power allows for optimal dynamics in every situation. The targeted application of power to the front wheels improves longitudinal dynamics while also improving lateral dynamics when cornering. This is because torque vectoring - the as-needed distribution of torque between the left and right wheels of the two axles - enables an exhilarating degree of driving precision and excellent agility.

    Thanks also to its low weight, short wheelbase and perfect 50:50 weight distribution for dynamic handling, the Audi e-tron Spyder Concept has all the drivability of a go-kart - good on bends and neutral right up to the very high handling limit.


    Audi e-tron Spyder Concept (2010)
    The combination of a highly efficient TDI and electric drive also provides for excellent fuel economy and amazingly low emissions. The Audi e-tron Spyder Concept requires on average just 2.2l diesel/100 km (106.92 US mpg), corresponding to CO2 emissions of 59 g/km (94.95 g/mile). A range of more than 1,000 kilometers is possible with the 50-liter (13.21 US gallons) tank.

    The open sports car can also drive strictly on electric power and thus with zero emissions over distances of up to 50 kilometers (31.07 miles), such as in urban areas. The top speed of 60 km/h (37.28 mph) is just fine for normal driving.

    Design

    The Audi e-tron Spyder Concept features what is without a doubt the most advanced and simultaneously the most consistent evolution of the current Audi design language, while also providing initial hints at the design language of future Audi sports cars. It reinterprets the most important design elements that already characterized the previous e-tron concept vehicles. This also ensures the necessary formal differentiation to the purely electric-powered Audi e-tron shown at the 2010 Detroit Motor Show.

    1.81 meters (5.94 ft) wide, just 4.06 meters (13.32 ft) long and only 1.11 meters (3.64 ft) in height: these are the classic proportions of an open, high-performance sports car. Compared to the coupé concept car in Detroit, the length and width have increased by 13 cm (5.12 in) and 3 cm (1.18 in), respectively, to underscore the sporty aspiration of the design. This further enhanced the powerful and compact overall appearance that characterizes both vehicles and links them to the sportiest production Audi, the R8.

    Due in no small part to the short wheelbase of only 2.43 meters (7.97 ft) - 22 cm (8.66 in) shorter than that of the R8 - the body of the Audi e-tron Spyder Concept comes across as extremely stocky.

    In an apparent homage to motor sports, the frameless side glass surfaces taper downward toward the rear. They form a unit with the windshield, which is strongly bowed and inclined like the visor of a helmet.

    Another element borrowed from race cars characterizes the hood: the wide central air inlet, whose curve further accentuates the dynamics of the car's front end and provides a visual and functional link to the Audi R8 LMS customer race car. The carbon application that is mounted flush in the front and side windows and wraps completely around the glass testifies to the design and manufacturing expertise that went into the car.

    The front the silhouette of the Audi e-tron Spyder Concept are characterized by a sharp, sweeping line that immediately identifies the two-seater as an Audi. The sharply tapered front end lends the Audi e-tron Spyder Concept a distinctly wedge-like basic shape. The trapeze of the single-frame grille dominates the distinctly wedge-shaped front end and is flanked by two large air intakes. They serve as cooling intakes for the electric drive system and also for the TDI engine at the rear of the vehicle.

    Above, the grille merges into the flat strips of the adaptive matrix beam headlight modules with their three-dimensional clear glass covers that follow the contour of the functional elements.

    All light units use ultra-efficient LED technology. As with the R8 and the e-tron sports car concept cars, the trademark four rings are located above the single-frame. Beneath the trademark is the charging station for the batteries. The rings disappear beneath the front hatch, exposing not just the charging plug but also a display showing the charge state and a map graphic indicating the current electric range.

    Another distinctive feature of this show car are the 20-inch wheels, that take the blade design of the first e-tron show car and refine it into a three-dimensional turbine design. The wheels combine the lightweight materials aluminum and carbon into a design that is both visually pleasing and very effective aerodynamically. The 66 individual components comprising each individual wheel of the Audi e-tron Spyder Concept are indicative of just how complex they are.

    The flanks sport familiar contours in a new form. Unusually sharply defined edges frame the smooth side surfaces while simultaneously separating horizontal from vertical areas.

    The shoulder line frames the lines of the strongly contoured wheel wells even more distinctly than in the Audi R8 and combines them with the upper edge of the vehicle body. Particularly when viewed from the back, the Audi e-tron Spyder Concept appears even more pronouncedly horizontal and more strongly oriented toward the road.

    An impression that is also created by the characteristic sills with a new cut and is picked up by the spoiler and diffuser at the front and rear of the car. Carbon elements borrow from motor sports to set special accents here as well. Carbon is also used on the engine cover in the rear and in license plate and lighting frame, which also includes the air outlets below the lateral light units.

    The contrast of materials is reminiscent of a race car. The essential functional elements of the chassis and the vehicle body are done in carbon, while the body as a cover sports a classic paint finish. This illustrates the formal "shell-and-core" principle that defines the Audi e-tron Spyder Concept particularly clearly.

    Thanks to an opening in the hood, even the longitudinal TDI mid-engine is a visible technological element surrounded by matt and glossy carbon surfaces, aluminum and leather. This combination of materials links the exterior with the interior of the vehicle.

    Behind the seats are two cowls that gradually taper toward the rear and also flank the opening for the TDI engine and the implied cooling fins of the engine cover. They also contain the normally hidden rollover bars, which like in the production R8 Spyder shoot up within milliseconds and lock into place in the event of an emergency.

    Interior

    Visual and functional references to the fundamental concept of lightweight construction characterize the purist interior design. They establish a connection between proven Audi genes and new formal hallmarks. Typical for the Audi design idiom is the reduction of the architecture, controls and information output to the essentials in favor of a tidy overall impression.

    The slim dash has a curve that extends laterally into the door panels. With no need to allow for a transmission, shifter and cardan tunnel, the designers again took advantage of the opportunity to create a particularly slim and lightweight center tunnel and convex, arching center console for the Audi e-tron Spyder Concept with hybrid drive. The only control element other than that of the MMI is the flush-mounted selector lever for the automatic transmission, which extends upward from the tunnel when the vehicle is started.

    The cockpit of the Audi e-tron Spyder Concept is also oriented toward the driver - a further characteristic Audi trait. Instead of the classic instrument cluster, the concept car is equipped with a large, display with integrated MMI functions and flanked by two round dials. The MMI can be controlled via a touch-sensitive control panel on the steering wheel - an element inspired by modern smartphones. It can also be controlled via the MMI control unit (MMI touch) on the center console. The steering wheel itself is clearly flattened off at both the top and bottom, in a clear reference to motor sport. Speed is displayed in digital form only. The dial instrument with information about the drive system can be chosen via the menu item "Drive."

    Besides information about the speed, the revs of the combustion engine and the electric drive, the central display also provides all of the key information from the infotainment and system. Characteristic for the concept of the Audi e-tron Spyder is the near total elimination of switches and components such as the ignition. The climate control unit is located to the right above the steering wheel. The display provides temperature and ventilation information. Again drawing inspiration from a smartphone, the system is operated by means of a touch-sensitive control panel.

    The equally racing-inspired lightweight bucket seats combine excellent lateral support with comfort. Contrasting colors and stitching delineate the various zones of the interior. The colors and the high-quality materials combine elegance and sportiness.

    ASF body

    Systematic lightweight construction is a crucial prerequisite for efficiency and range, while also being the primary foundation for exhilarating driving dynamics. The Audi development engineers drew on the core competence of the company for the Audi e-tron Spyder Concept. The body structure is based on Audi Space Frame (ASF) technology and was realized as a hybrid construction, with the hood and numerous aerodynamic components made of carbon.

    In ASF technology, the body's supporting structure is made of extruded aluminum sections and die-castings. Aluminum panels are incorporated into this skeleton to form a positive connection and perform a load-bearing role. Each individual component of the ASF space frame is optimized for its specific task by the use of widely differing shapes and cross-sections, combining maximum stability with minimal weight. Despite the complex drive system layout with two electric motors and their respective drive systems plus the TDI engine, the Audi e-tron Spyder Concept only weighs around 1,450 kilograms (3,196.70 lb).

    Engines and transmissions

    Audi has long proven the perfect synthesis between a highly advanced sports car and TDI technology. With the TT, Audi become one of the first manufacturers anywhere in the world to successfully bring a diesel sports car to market, a decade after the Audi Cabriolet paved the way for diesel engines in this segment. And the Audi R8 TDI Le Mans concept car was the first supercar to be fitted with a twelve-cylinder diesel engine with 500 hp and 1,000 Newton meters (737.56 lb-ft) of torque.

    The Audi e-tron Spyder also draws on this recipe for success - albeit in a revolutionary new combination. This marks the first use of a new generation of the six-cylinder, 3.0 TDI that breathes through two turbochargers and produces 221 kW (300 hp). That is another 50 hp more than the previous stage, which debuted a few months ago in the new Audi A8.

    Peak torque of 650 Newton meters (479.42 lb-ft) is unusually high, even in the sports car segment. The mid-mounted, longitudinal 3.0 TDI engine drives the rear wheels via a seven-speed dual-clutch transmission.

    Another innovation is the coupling of the TDI with the electric drive of the front axle. Two asynchronous electric motors with a total output of 64 kilowatt (88 hp) and peak torque of 352 Newton meters (259.62 lb-ft) combine with the 3.0 TDI to give the Audi e-tron Spyder the performance of a high-performance sports car. It accelerates from 0 to 100 km/h (62.14 mph) in 4.4 seconds. Top speed is electronically governed at 250 km/h (155.34 mph).

    The drive's characteristic is even more exciting than the abstract numbers. Thanks in no small part to the fact that the peak torque of the electric motors is available immediately, the Audi e-tron Spyder Concept accelerates with catapult-like thrust. Short passing maneuvers on interurban roads can be pulled off as spurts that are every bit as relaxed as they are fun, even without having to downshift.

    The noise level of the low-revving TDI is typically low. The six-cylinder unit behind the occupants issues a sonorously sporty growl under load, but never becomes loud. A surprising effect also present in the Le Mans-winning Audi R10 and R15 race cars, which are also powered by TDI engines.

    The benefits of this special form of hybrid drive - the coupling of a high-torque, high-efficiency TDI engine with the electric motors - are by no means limited to the dynamic potential of the Audi e-tron Spyder, however. The open two-seater also sets new standards in its class for fuel consumption and environmental characteristics. The 300-hp TDI consumes on average just 2.2 liters of diesel per 100 kilometers (106.92 US mpg), which corresponds to CO2 emissions of only 59 g/km (94.95 g/mile).

    The full-hybrid Audi e-tron Spyder has also mastered the discipline of zero-emission driving. In residential and other urban areas, the driver can activate the electric drive by itself. The 9.1-kwH battery at the front of the car has enough power for up to 50 kilometers (31.07 miles). And with a top speed of up to 60 km/h (37.28 mph), the Audi e-tron Spyder Concept is also able to move along smartly in city traffic.

    Chassis

    The normal distribution of the tractive power is clearly biased toward the rear axle in accordance with the weight distribution of the Audi e-tron Spyder Concept and the dynamic shift in axle load during acceleration. Similar to with a pure mid-engine sports car, roughly 75 percent of the torque goes to the rear and 25 percent to the front. If an axle slips, this balance can be varied thanks to the central control of the entire drive system in combination with the ESP. The hybrid vehicle from Audi thus enjoys all of the advantages of quattro technology.

    The combination of the mid-mounted TDI engine and the two electric motors at the front axle also make it possible to intelligently control the lateral dynamics of the e-tron.

    Similar to what the sport differential does in conventional quattro vehicles, torque vectoring - the targeted acceleration of individual wheels - makes the Audi e-tron Spyder Concept even more dynamic while simultaneously enhancing driving safety. Understeer and oversteer can be corrected by not only targeted activation of the brakes, but also by precise increases in power lasting just a few milliseconds. The concept car remains extremely neutral even under great lateral acceleration and hustles through corners as if on the proverbial rails.

    The chassis has triangular double wishbones at the front axle and a trapezoidal-link rear suspension made of forged aluminum components - a geometry that has proven in motorsports to be the optimal prerequisite for high agility, uncompromising precision and precisely defined self-steering behavior. A taut setup was chosen for the springs and shock absorbers, but it is still very comfortable.

    The direct rack-and-pinion steering gives finely differentiated feedback. Its electromechanical steering boost varies with speed, so that the Audi e-tron Spyder Concept only has to provide energy while steering, and not while driving straight ahead.

    As befitting its status, the Audi concept car rolls on 20-inch tires with a new blade design. 245/30 tires up front and 265/30 tires in the rear provide the necessary grip.

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    This is the first time that I can recall where Audi have equipped any car other than a race car with engine power solely going to the rear axle, but as this car has the additional benefit of electric motors powering the front axle it can still be called a quattro Audi. Also 25% to the front wheels and 75% to the rear wheels, I hope all these new concepts are an insight into what Audi has instore for us in the future.

  14. #14
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    Quote Originally Posted by Joker View Post
    Audi e-tron Spyder Concept

    Peak torque of 650 Newton meters (479.42 lb-ft) is unusually high, even in the sports car segment. The mid-mounted, longitudinal 3.0 TDI engine drives the rear wheels via a seven-speed dual-clutch transmission.
    So also a new S-tronic that can handle more than 550nm in the A6 C7?

  15. #15
    Moderator RXBG's Avatar
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    Quote Originally Posted by Zyklon5 View Post
    So also a new S-tronic that can handle more than 550nm in the A6 C7?
    as much as i would love this it sounds too good to be true- for audi anyway. look at porsche with its pdk.
    Past- A4, TT, S4

    Present- R8 V10

  16. #16
    Registered User Toto89's Avatar
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    Don't expect that much from a DCT. Not bad but a well engineered single-clutch will outperform it's shift times especially when changing more gears at a time (not only -+1). Not to mention that they are heavier. Porsche's PDK is really good (ZF 7DT) while Audi uses a Borg-Warner unit as far as i know, which is still not bad, although the 7DT is the best DCT at this time (I think). Personally i would choose ZF 8HP (like A8) to any car i can imagine. Quicker, lighter and has one more gear.

  17. #17
    Registered User darkop's Avatar
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    Seems like they are indeed serious about adding another sports car to their line up, and this could be a hint of forthcomings!
    Future is bright, I say...
    http://www.worldcarfans.com/11010062...ased-on-e-tron

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