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Duntov started off with a ‘54 Corvette as his test mule. He knew that accomplishing his goal would require two things: more power and improved aerodynamics. First, he removed the stock windshield and built a small windscreen. A tonneau cover was then added to the passenger side, and a fairing with a long fin was added to the rear deck behind the driver’s head.
If you were a senior GM employee, one of the perks was being able to have your own custom built for you. Bill Mitchell was known for it, but this SR-2 Lookalike was built for GM president Harlow Curtis, who was president of GM during the period that the SR-2 were developed. The lookalike was built by GM’s styling staff and presented to him.
SR 2 Corvette
Designed mid-1956 for Harlet Earl’s son Jerry, the SR-2 was put into racing duty in 1957. The car debuted at Daytona Beach in 1957 with a high-speed canopy, fender skirts and bullet-shaped frond headlights. Driven by Betty Skelton and Buck Baker, the car won the modified class with an average speed of 93.074 mph. The SR-2 also finished second in class for the flying mile with a top speed of 152.886 mph.
In 1956, Ed Cole, then General Manager of Chevrolet, decided Corvette could be saved from extinction due to lagging sales by promoting the car as a performance car which could be raced in production classes. The first of these Corvettes was to debut at Daytona Beach for acceleration and top end speed trials, the 12 hour race at Sebring, and also possibly Le Mans.
On July of 1955, the Chevrolet design studio staff created a dream car for the 1956 GM Motorama shows, called Corvette Impala. The Corvette grille and grille surround are incorporated, as well as other Corvette components. This hardtop five-passenger sports sedan shows the name "Corvette Impala" on the front emblem and rear license plate.
The Corvette SS racing car and its mule test car were planned as far back as August of 1956, well before the Super Sport show car. However, that one was referred to within GM as the XP-64, and it was finished in march, well after the show car had been on the show circuit for a couple of months.