If you want an audi then the rs4 is a much better car in terms of handling and alot less problems,they also offer a super charger kit for it that takes it to 520 hp..

The rs6 has gearbox problems suspension problems brake problems and turbo issues..

The later rs4 4.2 v8(same as r8) is a much better car with the later 60/40 split manual 4x4 transmision and they did alot of work on making the front end lighter so it handles much better than the older rs6..


cheers danny