Carroll Shelby's million dollar muscle cars

Ford Motor Co. introduced the Mustang in 1964 and the sporty little car became an instant hit.

The small and light Mustang was an ideal platform for building another race-winning car. It didn't take long before the first Shelby Mustangs were introduced for the 1965 model year.

The first cars were 306 horsepower Shelby GT-350s. Shelby is seen here propped on a 1966 Shelby GT-350 convertible, one of only four made that year.

Production of classic Shelby Mustangs continued through 1969 when, faced with pressure from the insurance industry and government regulation, the program was phased out.

Today, classic Shelbys in good condition can be worth hundreds of thousands of dollars, according to Hagerty Insurance. A genuine '66 convertible -- there are fakes out there -- is worth about $900,000 in good condition.

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