Hence the 3 stars, the graphics are not that good, the screen shots in the App Store shown isn't anything like the game play, don't let it fool you, you will be lucky if you find a game that good in the App Store like real racing 3 asphalt 8 and so on, the screens shown here are just a cg edited and rendered screenshots, nothing more, and the physics engine also the same as your previous games too, so there is no real improvement in this game, the graphics only improved a bit, but it's nothing like the screenshots shown and to add to that, there is no support for Game
Center which makes this game a step back compared to your previous games. Such shame and a waste of time, if you keep making repeated game with same physics but only few different cars, also stop using cars models from burning rubbers and other games, it's so annoying how all the games on the App Store keeps using the same cars models from burning rubbers, make your own, also consider changing the physics