Originally posted by M-Phibian
It was developed for and is used by F1 cars, and I believe the only production cars that use it are the M3, Audi S4, and two Ferraris. Although there are other cars that have "paddle" shifiting, they are all automatics.
You can add the Audi RS6(twin turbo V8 producing 450hp) which will hit the US soon. This too will have a paddle shift. I drove a friend's M3 w/ SMG and it was awesome. The downshifting is especially impressive. Feels like you're Schuemy or JPM in F1.