So much endless fun I've had playing this. It's a game that anyone of any age can pick up and play. It's both addictive and easy to put down. Hard to master, but simple to enjoy. Basically the Tetris of racing games.
I know you're not a big fan of promotional crap, but I ported the 3D model of Licar to SuperTuxKart and it can be downloaded from the official add-ons in game. It's the first 3D anything I've ever done so it was a bit of a learning process and maybe it isn't perfect - but it's still there. Maybe a few SuperTuxKart players will see it and end up finding Licar itself.