850hp...wow. My brother had one but was all stock. That was the first really fast car I remember riding in 0-60 and feeling that feeling of the power of the car catching and slapping you in the back with the seat and off you go. He let me drive it right before he sold it and it was fun just destroying the Z28s and Trans Ams that tried. Thinking back on that I am still amazed at how smooth the RS6 does the same feat. The first day I had my RS6 a big ol Firebird/trans am of the last year they made them with a huge hood bulge came roaring up off an on ramp next to me and tried to run. In the next few seconds I blew past him on up to 140 and a 10th of a mile lead. The kid had no idea what hit him and followed me off the exit I took and asked me about it. Fun.