A 1954 Mercedes used by Bonhams sells for almost $ 30 million in Fangio . He won the championship with four different teams -- the only man to achieve the feat -- and is also the oldest Formula One champion , claiming the title in 1957 at the age of 46 . ` The auctioneer claims it 's the most expensive car ever sold at an auction . Bonhams says the previous record was about $ 16 million , paid in 1954 for a Mercedes .
A 1954 Mercedes used by Bonhams sells for almost $ 30 million in Fangio . The auctioneer claims it 's the most expensive car ever sold at an auction . Bonhams says the previous record was about $ 16 million , paid in 1954 for a Mercedes .