great idea, not sure how the publishers will see it from another well known title though.

however as a game example and concept its a good start.

few bugs though:

scoring continuing after the game over is just one of them.

have another run through yourself and see what things you can improve.

I would perhaps give certain cars a points value etc.

If you missed the traffic, make GAME OVER and allow player to restart. Or, if you aiming big, make a small village, in which you can freely move and should make a crash.