Price: £15,345,000 [$20,376,595]

Also known as Royale, the Bugatti Type 41 is one of the largest cars in the world, measuring 169.3 inches in wheelbase and 252 inches in overall length. It's also powered by one of the biggest engines ever made – a 12.7-liter V8 that's 4.6 feet long and 3.6 feet high. It was manufactured by Bugatti from 1927 to 1933.