I would give 5 star but... after completing campaign... there is so very little to do... the requirments for races are ridiculas... as I'm still relatively new to the game I don't have 3 star fused cars and all opponents do... there is very little to be able to do... can't win much money and even less gold.... so can't move forward... I won't pay real money for a game so limited.... a quick race option needs to be added so we can play against bots... even if the winnings are low....