Donkey is silly, yes, but i like it as a small monster truck. I find it mildly amusing to bully traffic with it. Plus, with tiger livery it doesnt even look terrible!
Come to think of it - the only car that i totally, absolutely, uncompromisably HATE aside from biggest class-breaking balance offenders, is the aforementioned Armored Kuruma. But i do have an unusual quirk in me - i really dislike Jesters. Something about that responsiveness and stability frightens me - it doesnt feel right!