What Are the World's Most Expensive Automobiles?

10. Rolls Royce Sweptail

With a sticker price of $13 million, this custom Rolls-Royce is by far the world's most expensive automobile. The Sweptail is a luxury coupe that was commissioned by a customer who wanted a unique vehicle. Rolls-Royce fabricated every part of the car by borrowing some shapes from classic superyachts. The Sweptail name, as well as some elements of its design, suggest the swept-tail Rolls-Royce construction from the 1920s. The automobile took nearly four years to design and build.