this game reminds me of Racing Fever (GBA), Asphalt, Burnout and Ridge Racer. I have a suggestion for this game:
1. add multiplayer split screen (2-4 players).
2. race more than 4 cars, 8 and 12 of them.
3. add track selection screen.
4. add the nitrous to the car.
5. add an option to disable/enable traffic.
6. make the car slow down and stops when the time reaches zero.
thanks.