Real Racing 3 also has real-world circuits, 3D interior modeling, reflective bodywork and incredibly hi-res visuals. It also features cars made up of 30,000 polygons each. That's very high, but still some way short of GT5 Prologue's circa-200,000 polygon models.
However, even on iPhone 5, the frame rate isn't a rock-solid 60fps. Also, post-processing filter effects are less evident than in Polyphony's PS3 racer, leaving the iOS game looking a little too 'clean'. It's close enough to be compared side-by side, but not quite up to GT5 Prologue.