OPM: Are you aiming for 60 frames per second?
Alex Perkins: Increased visual fidelity does cost, there's no argument about it. We are aiming for 60. If I had my way, I'd rather have more stuff going on at a prettier level and lower framerate.
OPM: Tell us, how badly can we damage the cars?
AP: We've gone to the same level of detail as we have with all of the materials, and everything's layered up sensibly so you can scratch and dent and crush. The carbon fibre fractures and cracks, and the metal will buckle and peel, and reveal the layers of paint and, finally, the metal.
http://www.neogaf.com/forum/showthread.php?p=62332789#post62332789