10. 1936 Mercedes-Benz 500K Roadster – $1.45 million.
In July 1984, Christie’s sold a 1936 Mercedes-Benz 500K Roadster for $1.45 million. Just 58 of these supercharged sports cars were built between 1934 and 1936.
9. Aston Martin DBR2 – $3.4 million.
One year after the 500K Roadster, Christie’s sold this one-of-a-kind Aston Martin DBR2 racing car, for $3.4 million. The car’s value has increased considerable since then.
8. 1931 Bugatti Royale (Berline de Voyager) – $6.5 million.
The Bugatti Royale Berline de Voyager, was built in 1931 but kept as part of Bugatti’s private collection. Hidden away from the Nazis during the war, the car was eventually exported to the United States.
7. 1929 Birkin Bentley – $7.9 million.
When the Birkin sold during the 2012 Goodwood Festival of Speed, it became the most expensive car ever manufactured in the UK to be sold at auction, a title previously held by a 1904 Rolls Royce.
6. 1961 Ferrari 250 GT SWB California – £10.9 million.
In May 2008, radio presenter and car fanatic Chris Evans paid almost 11 million dollars for this Ferrari at an auction in Italy. The car had previously been owned by actor James Coburn.
5. 1936 Mercedes 540K – $11.7 million.
Formula One chief Bernie Ecclestone owned one of these rare vehicles and sold it for $6.3 million in 2007. Five years later, one of the remaining 26 models still in existence sold for almost twice as much.
4. 1931 Bugatti Royale (Kellner Coupe) – $14.9 million.
More than 15 feet long and powered by a 12.7 litre aircraft engine, the Kellner Coupe had been launched at the height of the great depression and was a sales flop as a result, but would go on to become one of the most valuable cars of all time.
3. 1957 Ferrari 250 Testa Rossa – $16.39 million.
The Testa Rossa race car dominated Le Mans during the late fifties and early sixties. Famous for its distinctive red valve covers – the name means red head – just 34 of the 250 Testa Rossas were ever built.
2. 1963 Ferrari 250 GTO – $19.4 million (2010).
Two years after he bought his multi-million dollar California, Chris Evans sold it in order to fund the purchase of this car. The GTO is hugely sought after in collecting circles but owners tend to hang on to them – only 2 have come up for auction in the last 20 years.
1. 1936 Bugatti Type 57C Atlantic – $43.7 million.
With just three models ever built and a single prototype, this Bugatti is one of the rarest cars around. Little wonder then that this vehicle broke all records for cars sold at auction when it went under the hammer in 2010.