In terms of the driving experience, the only thing Gran Turismo is missing is a sense of speed. That’s the one area where they really need to improve. Everything else is top notch.
I drive a Challenger every day, and I know how that thing feels when I rip it down the road. When I drive a Challenger in Gran Turismo it handles fairly close, it just doesn’t feel or look like I’m driving as fast as I am.