Fourth-costliest car: 1962 Ferrari 250 GT SWB California Spyder
Winning bid: $8.6 million
Ferrari produced only 106 California Spyders -- including just 37 of this prized variant, which combines a short wheel base with covered headlamps.
The convertible also boasts a 280-horsepower V-12 engine, three carburetors and four-wheel hydraulic disc brakes -- a combination suitable for racing or regular road use."The California Spyder is considered the most attractive convertible Ferrari road car in existence, and I'd go so far as to say that it's one of the most-attractive open-topped road cars ever," says Girardo, whose company sold the car.