Price: £15,898,575 [$21,111,686]

Another model from the 1930s, the Alfa Romeo 8C 2900B Lungo Spider is among the few sports car choices of that era. It was also the most advanced, modern, and compelling sports car that money could buy at that time, not to mention the rarest as well. Only 32 of these cars in 2.9 chassis were made, seven of which are Touring Spiders in long chassis.