16. 1954 Oldsmobile F-88

The most talked about concept car, 1954 Oldsmobile F-88 is priced at $3.24 million. This opulent gem can go up to 250 horsepower and has a 324-cubic-inch Oldsmobile Rocket V-8 engine. The 1954 Oldsmobile F-88 is unquestionably the rarest beauties of all times.