The Mustang made its first public appearance on a racetrack little more than a month after its April 17 introduction, as
pace car for the
1964 Indianapolis 500.
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The same year, Mustangs achieved the first of many notable competition successes, winning first and second in class in the
Tour de France international rally. The car's American competition debut, also in 1964, was in
drag racing, where private individuals and dealer-sponsored teams campaigned Mustangs powered by 427 cu. in. V8s.
The Camaro was one of the vehicles in the
SCCA-sanctioned
Trans-Am Series. Chevrolet worked with
Roger Penske to operate their unofficially factory-backed Trans Am team, winning the title in 1968 and 1969 with
Mark Donohue.
Jim Hall's Chaparral team replaced Penske for the 1970 season. Warren Agor of Rochester, NY, was the series' leading Camaro privateer, his orange #13's o, 1993, 1994, and 1998.
There was also another SCCA Trans-Am Series Camaro that was not popular because of racing but because of its body modifications. This Camaro, number 13, had been built and driven by Henry “Smokey” Yunick. Smokey Yunick was a car builder who worked to reduce the weight of his cars by acid-dipping body parts and installing thinner safety glass.
The Penske/Donohue Camaros also had the front sheet metal dropped, all four fenders widened, windshield laid back, front sub-frame “Z’d” to lower the car, the floor pan moved up and even the drip-rails were moved closer to the body. This Camaro had always kept its stock look and had a 302 engine that was able to produce 482 horsepower.. One part that had come out of his testing was the Edelbrock Cross-Manifold. To this day the Smokey Yunick 1968 Camaro is owned by Vic Edelbrock Jr.
The Challenger was introduced to the SCCA
Trans Am Series in 1970. Two factory-backed cars were prepared by Ray Caldwell's Autodynamics and driven by
Sam Posey and
Tony Adamowicz. The No.77 car was built at Autodynamics from a street Challenger T/A that was taken from a local dealer showroom. The No.76 chassis arrived mid-season from Dan Gurney's All-American Racers, and was completed by Autodynamics.
Dodge's mid-1970s factory-supported "Kit Car" program for short-track late-model stock car racing offered a choice of Challenger but in 1974 Dodge ended the challenger line and they went to the Dodge dart sports and Dodge Aspen bodies over a steel-tube chassis.
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