This is like a RS6 allroad!!!
From the Audi press-release:
Eight-cylinder, 500 hp engine with twin turbochargers and direct gasoline injection
Well known from the Audi RS 6, the V8 engine with twin turbochargers has been further developed and now has a power output of 500 hp. A decisive factor in this power hike is the advanced FSI direct gasoline injection principle, which indicated that new standards were about to be set when it was used on the competition cars that scored historic victories in the 2001 and 2002 Le Mans 24-Hour races and in the American Le Mans Series. Powerful FSI engines are already in production for the Audi A2 and A4 models.
In the Audi Pikes Peak quattro the eight-cylinder twin-turbo FSI engine is notable for its free revving and vigorous pulling power at all engine speeds. It accelerates the Audi Pikes Peak quattro from 0 to 100 km/h in only 5.0 seconds (0 – 60 mph in 4.7 sec) and takes it on to a governed top speed of 155 mph (250 km/h). Its maximum torque of 630 Newton-meters is available from as low an engine speed as 2000 rpm upwards and remains constant over a broad speed range. This supreme, massive pulling power is ideal for fast cross-country driving and for negotiating off-road sections of the journey.