I stopped playing Gran Turismo 3 while I was in Drivers Ed. It had me thinking too much about the best way to keep my speed up in turns and whatnot. I won't say it's not useful for learning actual cool stuff like driving lines and such, but instructors and parents don't like it when you treat every trip out on the road like a race.
Whenever I play Mirror's Edge I also get the urge to run, climb, and jump off of stuff. In fact, when I first got it I would think about the best way to scale buildings and run across the rooftops I'd see on my way to work.