This game is a blast to play, and will appeal to a much larger audience than an actual sim would, imo.
The visuals are colorful, sharp and inviting. The audio has all the engine noise you could want in a racing game. Up to 4 players can play on screen at the same time, and all four screens update at the same frantic rate.
If you need speed, you've got it. The cars really fly, and fortunately the physics are not that realistic, or the car would be very hard to control. But the speed will really get your adrenaline going.
The car shop is a total blast, enriching the artist in you, when the speed craving animal needs a break.
The only areas that could use some improvement are with the small narratives and lack of online play.
Otherwise, a fantastic title for children of any age.