For the real thing, with real American drivetrain parts, look no further than the Arizona desert, where this rare 1955 Studebaker President recently popped up, and you can get it on eBay right now for a song!
Like the American classics that line streets of Cuba, parts fail and engines die. But unlike the island nation, there are plentiful American replacement parts, or at least parts from other vehicles by the same automaker. For example, this Studebaker President has a 259 cubic inch V8 engine from a Studebaker truck. It is mated to the a three-speed manual sending power to the rear wheels.
Unfortunately, much of its documentation is a bit muddled, which is why with just two days left, the reserve has not yet been met. At this time of writing this, bidding on eBay right now is at $1,225, so for those creative mechanics out there, it might be a great deal!