Forget about Ford versus Chevy! Forget about BMW versus Audi! And who cares about STI versus EVO? There’s a truly vicious competition between the folks in Turn 10 Studios and Polyphony Digital. Gran Turismo is a video game that has changed car culture forever and Forza Motorsport has became a highly popular and serious racing simulator platform. If you can choose just one platform, which one would you pick, Turn 10 Studios’ Forza Motorsport or Polyphony Digital’s Gran Turismo?