To be honest the idea of the game is fine and all and it plays really well but there's only 1 stage and 4 cars. Once you 100% completed it there's little to no reason to re-play it. Not like it matters anyway because the timer is pointless. The ONLY thing it gatekeeps is the mission where you have to finish the track without running out of time. Other than that the timer does not hamper you at all so you can just screw around and complete the other missions.