It's this one










 They can't just make a model of Go Karts and apply some random physics, it's really complicated thing to simulate, so it's there just so they can say "hey, we have go karts too"..  they could add Boat races too, if they want every single racing in the game..
  They can't just make a model of Go Karts and apply some random physics, it's really complicated thing to simulate, so it's there just so they can say "hey, we have go karts too"..  they could add Boat races too, if they want every single racing in the game..


