A Mario kart rip-off. Megh.
Only played literally one round on my friend's PS3, but he can't stop raving about it. It's all he plays these days. I can see that the track and character/kart editor is pretty powerful, but it's really not for me. Never enjoyed Mario Kart or any similar games either.
I bought this game on release date, and i'm still not regretting it. It gets challenging closer to the end of the career mode but will recommend this title to anyone with a brain.