If you own a Ferrari, it's safe to say you're doing well for yourself. If you own a Ferrari boat it's safe to say you got enough dough to feed a small island nation. Wait, wait--a Ferrari boat? Yep. Ferrari once made a boat. A good, fast one, too. And they weren't the only ones. A bunch of car makers have teamed up with nautical companies to extend their brands to the water. Maybe they fear we're all going to need boats once the ice caps melt. Or maybe it's pure marketing. Just today designer Mauro Lecchi's concept for a Lamborghini yacht surfaced online, and while we don't really care whether or not it gets made since our money stops short of affording a Lambo key chain, it's pretty damn amazing. But how does it compare to the other automakers offerings? Check out the 10 dopest car, boat collabo's to ever hit the open seas.