SuperTuxKart

you are searching for a funny karts game, you'll be interested in SuperTuxKart, an easy-to-play game similar to Mario Kart that will give you hours of fun. SuperTuxKart is a free and open source karts racing game where we'll drive the Tux' kart, yes the Linux penguin, and win all the competitions where he will take part in. Although at first you were able to choose only Tux, now you can choose among a list of ten different characters related to the famous penguin. Choose the race: championship, single race or against the clock. Finally, you'll be able to use some extras that will power up your kart, very similar to the ones you found when playing Super Mario Karts.