Price: $7.25 million This car had a big year in 1965, first winning the FIA World Sportscar Championship and later appearing in cult-classic racing film Redline 7000. "I don't think the car sold for what it did because of the movie, but I do think they picked it for the film because it was seen as rare and valuable even then," says Mecum's Murtaugh, whose company auctioned off the Cobra Daytona Coupe in 2009. Legendary auto designer Carroll Shelby and his associates built just six of the cars in 1964-65, aiming to become the first American team to win a FIA crown. The model that Mecum sold in 2009 is the car that actually crossed the finish line at Reims, France, to lock up the championship -- on July 4, 1965, of all dates. The Cobra then appeared in Redline 7000, directed by Hollywood legend Howard Hawks and starring a very young James Caan. (The car is the blue vehicle in the ditch at the beginning of this clip.) Murtaugh says the Cobra attracted such a high price because "it has the whole package -- it's a Shelby, it's a championship car and it's one of only six ever produced. The Redline 7000 appearance was just a bonus."