I say Blitz ftw!
It has a great balance between bashing capability, racing capabiltiy, and all around toughness.
I also like the slash as many toehrs do for being just plain fun to mess around with but it isn't a great racer unless your racing against slashes then you're fine
Anyway I don't really like the sc10, the design is great it just seems it doesn't fit anyones driving style from our track, (everyones faster with thier modded slashed acctually) It has potential but they are all great really.