I do love cars, but as a biker, well, those crotch rockets are just in a completely different planet. My BMW S1000RR runs around 210bhp with a full race exhaust and piggyback fueling computer; the last car to try to race me was a 458 Italia, which I left as if it hadn't even gotten started.
Acceleration on any modern 1000cc superbike is so brutal that one more hangs on for dear life than anything else. I was riding yesterday with my riding buddies; there are three 2nd generation Hayabusas. On a newly built highway in the Korean mountains (empty), we ran a couple 60-180mph pulls, and I passed them each time after giving them about 1-2 seconds headstart. Still frightens the bejeezus out of me to peg the throttle on my bike, and I wouldn't even have the balls to do that if it didn't have an anti-wheelie/traction control computer on it.
I've raced a lot of Gallardos in my Skyline; having now driven an RS6, I'm not surprised that up to 80mph an RS6 can keep pace, especially if chipped.
I've never really understood the Honda tuning scene; how the hell does one get that kind of power down with front wheel drive?? I need to search the forum here; someone at some point must have gone for a monster RS6 build. I know what I can get out of 2.8 liters and twin turbos; with 4.2 liters, dropping the compression ratio to 8.5:1 and forged pistons (and Darton sleeves if the stock Audi block can't take that much boost), 800-900 bhp should be dead simple to achieve. But then there's that pesky transmission issue...and then such an RS6 would need spoolup time, and the thing that impressed me mightily about the RS6 is that I couldn't sense that it was a blown engine; power was right there from 2000rpm.