The Chevrolet Vega is a subcompact, two-door automobile that was produced by the Chevrolet division of General Motors for the 1971-1977 model years. Named after the star Vega, the car was powered by a lightweight aluminum-block inline four-cylinder engine.
The Vega was produced in hatchback, notchback, wagon, and panel delivery body styles. A limited-production model, the Cosworth Vega, with a smaller but more powerful engine, was introduced in 1975, the same year that GM introduced two additional subcompacts: the less expensive Chevrolet Chevette, and the Vega-derived Chevrolet Monza. Two additional Vega variants were produced by Pontiac: the Astre and the Safari Wagon.
Initially well-received by buyers and the motoring press, from whom it received numerous awards, the Vega sold well against domestic subcompacts such as the AMC Gremlin, Ford Pinto, and imports from Toyota, Datsun and Volkswagen. By 1974 it was among the top 10 best-selling American cars.
Brought to market in a short time, early examples suffered from engine problems, poor build quality, and corrosion, which caused long term harm to GM's reputation. Although the faults were remedied by recalls and redesigns, a three-year decline in sales culminated in the car's cancellation at the end of the 1977 model year.
Source: Wikipedia, 2011