Really enjoyable little game. I think the thing you really nailed or me was getting some character into the different coloured cars. It wasn't long before I was recognising the distinct sounds and driving speeds of cars, like the yellow one who would dart out of nowhere or the red one who was just plain breaking the law. I found it all surprisingly engaging - which I would put down to really nice use of animation and sound effects. The ambient sounds in the background set a nice groundwork for the car-horns to work over. The sound when you get hit is also lighthearted and silly, like the animation. Some people would be tempted to make it gross or shocking, but you handled it in a way that made me laugh every time. Nice work! :)