I don't want to go into detail, but basically, it's me helping a friend set this up for his client. They want a racing game, and that's essentially the level of detail I was given, outside of either ps3 and move, or xbox and kinect. If it were my suggestion, get a good game, racing games suck, however, it is not.
Basically though, it's as I read. Controllers are the way to go for racing games, outside of full on steering wheel kits for ps3/360. Either that or mario kart wii.