We'd be a Ford Capri, with missile launchers coming out of our headlamps, and big Batman prongs on the top of our head. It's exciting, then, to hear that the upcoming Transformers game Transformers: War For Cybertron (which incidentally looks really good) includes a character creation mode.
Sadly, it appears that Modnation Racers/LittleBigPlanet this ain't. Going by the trailer (embedded after the jump), creation goes about as deep as selecting a class, selecting a team and selecting a hue. We've got our fingers crossed that there's more to this than meets the eye.