Ever since the earliest days of the automobile, manufacturers have been experimenting with alternatives to the tried-and-true four-stroke internal combustion engine. Some notable alternative powertrains include the Wankel rotary, hydrogen fuel cell, and plug-in battery-powered electric motor. But back in the early 1960s, Chrysler released a vehicle with a drivetrain that seemed truly out of this world: the Turbine Car. Powered by an A-381 turbine that could run on unleaded gas, diesel, kerosene, or JP-4 jet fuel, it was a true "alternative fuel" vehicle. And it wasn't just a one-off concept — 50 cars were built and released to the public.