Firstly his alt-mode kicks ass, because it actually looks like Kup (in a modern way, rather than his futuristic alt-mode from his original incarnation) a compact green pick-up truck that in true prime-car-alt-mode(?) tradition, looks like a slightly stylised version of something you might see crusing about now and again.
The transformation's fairly simple, a lot of folding and flipping. The front section is a bit of a pain to get into place. Most of the time I have to pull the section so hard, it seems like I'm going to break the plastic.
|"You left a piece out!"|
Robot-mode is awesome.