Seriously. Which one? Which Cadillac (past, present or concept) would the infamous Sith lord be seen in while driving around in a Galaxy Far, Far Away? If you ask us, it could be the V-12 Powered Cien concept. But if we’re talking about the whiny Hayden Christensen version of Darth Vader, we’re going to have to go with the Cimarron. May the Force be with him, always.