Some were once owned by celebrities, like Clark Gable's 1955 Mercedes-Benz 300SL; others are incredibly rare, like the 1929 Isotta Fraschini that went for a winning bid of $1.32 million. All are gorgeous, and worth a lot of money.
Of the fifty cars Barrett-Jackson put on the block, here are the 25 most-worthy of attention, presented in order of price.