...you know, it's funny, i had vehicle voltron too, and although i never watched the cartoon, my best friend's little brother did, and i don't remember ever seeing episodes of the vehicle team, only the lions, although i know vehicle voltron also had a cartoon...
...real exotica was gladiator voltron, three humanoid robots which merged into a larger robot, which i never saw anywhere outside of catalogs...
(fifteen cars, jets, and submarines)