I thought a bit more about it and came to the conclusion that, in fact, it sounded a bit like Tron with a less radical gameplay :p because you're basically punished for the same thing: sitting behind your opponent car. Would that be a good description, Tron with kettles ? ^^
I'm not familiar with that game, so that's purely coincidental. Sounds like it could be a good source of inspiration for me though, so thanks for mentioning it. :)