3. Rolls Royce Sweptail
The Sweptail has only one unit. It was made upon request but we do not know its owner. This car is special for different reasons. It was Rolls Royce celebrating antiquity and contemporary designs. The car combined the 1920s design with a more modern finish.
Priced at $13 million, the Sweptail was the world’s most expensive car when it was first launched. Too bad we have no information about who it was made for.