2013's fourth-costliest auction car: 1953 Ferrari 340/375 MM Berlinetta Competizione
Price: $12.8 million
This 340-horsepower racer won 1953's 12 Hours of Pescara and Circuit of Guadeloupe races and helped Ferrari take the Manufacturer's Championship that year.
The Berlinetta Competizione is also the only known Ferrari "works" car (a vehicle specially prepared for racing by the Italian automaker's competition department) to be driven by three world-champion racers: Alberto Ascari, Nino Farina and Mike Hawthorn.
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"Genuine works Ferraris with a competition history such as this are very rare to the market," says Max Girardo of RM Auctions, which sold off the vehicle last May in Italy.
2013's third-costliest auction car: 1964 Ferrari 250 LM
Price: $14.3 million
This car is one of just 32 Ferrari 250 LMs ever built, and the $14.3 million the vehicle attracted last November in New York represents the highest auction price ever for any of them.
The racer's 320-horsepower V-12 engine can propel the car to more than 150 mph, and the vehicle placed No. 1 in class and eighth overall at 1968's 24 Hours of Daytona race.
The 250 LM, which RM and Sotheby's jointly auctioned, also competed in the 1968 12 Hours of Sebring contest, the 1969 24 Hours of Daytona and a host of other races.