- The standard issue Chevrolet Vega is powered by a carbureted engine with a 140-cubic-inch displacement. On the Cosworth edition of the Vega, however, the in-line four-cylinder engine saw the displacement reduced to 122 cubic inches and electronic fuel injection was added. The Cosworth Vega's 16-valve engine produces 110 horsepower at 5,600 rpm.
- The 1975 Cosworth Vega came equipped with a four-speed automatic gearbox with a 3.11 first gear ratio and 3.73 final drive ratio in a positraction-equipped rear end. The 1976 model year, which was the second and the last for this model, saw an upgrade to a five-speed manual gearbox.
- The 1975 Cosworth Vega is a two-door hatchback that sits on a 97-inch wheelbase. The body measures 176.4 inches in overall length, 65.4 inches in width and 50 inches in height. Curb weight for this car is just 2,760 pounds.
- The 1975 Chevy Cosworth Vega has a zero-to-60 mph time of 12.3 seconds and runs the quarter-mile in 18.5 seconds. The top speed of this compact hatchback is 112 mph.
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