Price: $7.25 million
Auction: Bonhams, London 2007

First displayed at the Paris Auto Salon in 1904, the fancy Rolls was then displayed months later at London's Olympia show where it would return and be sold 102 years later. This classy antique is not only expensive pre-1905 automobile, but also the most expensive Rolls-Royce ever bought, recognized by the Guinness Book of World Records. Officially called a "veteran" car, this is the fourth Rolls-Royce ever built, and the oldest Rolls-Royce money can buy. It is basically a super luxe carriage minus the four-legged animal to carry it. Instead, a two-cylinder engine packs the power of 10 horses under the hood. Such a brilliant example of impeccable quality craftsmanship is worth all the money.