Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs
Tags

I am already working on smoke effects as reward for doing certain things. But cars should always be random. It's just different amount based on your position on the end of the race. 

I do not like idea of currency in game since I see it in every game and it's too boring. I feel like current approach is better.

really in every game has this approach, and this idea of reward is very cool :)