We've got to give credit to Kotaku for putting together this lovely video of four classic Mario Kart levels recreated in Sony's upcoming kart racer, LittleBigPlanet Karting.

Like any LittleBigPlanet game, Karting gives players unlimited freedom when it comes to creation. And what do gamers with creative freedom do? Make giant penises. What do they do next? Copy things from games they love into other games.

These Mario Kart-inspired levels are from LittleBigPlanet Karting's beta, which just ended. Mario Kart being a rather obvious source of inspiration, we think it's going to be even more exciting when the game comes out later this year and players have a lot more time to work.

Which level do you think looks the best? How about that Sonic track? Tell us what you think in the comments or on Twitter.