PGR3 has to over exxagerate the reflections because thats all they have going for them, if it wasnt for that there wouldnt be as obvious of a difference. Plus the masses arent eagle eyes, the reflections need to be obvious and noticed, so itll be eye catching and the instant impression of the game will be a great wow. Which is especially important for a launch game. Especially for an arcade game of this type the focus has to be on style and flash. And maybe to a degree graphics have to match the physics of the game, it wouldnt be totally suitable for a game which resembles reality perfectly in appearence to not behave like one aswell.