A 1965 Ford Mustang Shelby GT350R Fastback is heading to auction in the coming days and if pre-auction estimates prove to be accurate, it could sell for upwards of $1.5 million.

This is one of just 34 examples of the GT350R SCCA B Production race cars that were created by Carroll Shelby, is serial number 5R106 and has a long race history.

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The Mecum listing reveals that the car was raced at numerous Midwest SCCA National events by its first owner who ordered it through Jack Loftus Ford in Hinsdale, Illinois. Like other examples of the GT350R SCCA race car, it left the Ford factory as a stripped-back Mustang 2+2 Fastback before arriving at the Shelby facility and undergoing a six-month transformation into a competition-spec model.

The car made its race debut in the B Production class at Road America on September 4, 1965, a mere 10 days after being delivered. It went on to compete in race at Clermont, Indiana, Lynndale Farms, Wisconsin, and Wilmot Raceway. In the early 1970s, it was placed into long-term storage where it remained for many years. After being purchased by its second owner, the car was restored and went on to win the Gold Award in the Competition Class at SAAC-18 at Watkins Glen in 1993.

Despite competing in various races, the car has just 4,930 miles on the clock and remains in excellent condition.