What kind of question is this? Every driving game is best with a controller. Analog sticks are much easier to precisely move your car in a specific direction while keys just turn your car at a certain speed until you let go. Imagine playing a driving game with the face buttons instead.
@the_grindilow: Personally I hated the feel of the car in canyon and love the feel of driving in stadium, more than worth it to upgrade imo. To each his own I guess.
You know what dude I totally forgot about reverting back to the old cars. I did like the handling in Canyon, but the open wheelers are a bit easier to get to grips with. Kinda considering picking it up now.