An auction record was set at the 2019 Mecum Kissimmee, FL event. A one of a kind 1967 Shelby GT500 Super Snake sold for 2.2 million dollars making it the most expensive Mustang ever sold at an auction. The previous record was set at Mecum in 2013 by a rare Shelby notch-back car for $1,300,000.
The 1967 Super Snake was built for the Goodyear Thunderbolt Tire Test. It drove 500 miles at a high-speed track in Texas averaging 142 mph. Carroll Shelby planned on producing 50 Super Snakes but due to the sales price costing double the price of a standard GT500, that idea was scrapped.
The 1967 Shelby GT500 came with the 428 Cobra Jet engine but Carroll Shelby decided to swap the Super Snake to the 427 side-oiler from the Ford GT40.