In the mid-’70s, something strange rolled off a quiet GM line: a hand-built, twin-cam engine with racing roots, electronic fuel injection, and a badge nobody expected it on. It had aluminum everywhere, forged internals, and a redline that promised thrills. The numbers looked sharp — until the price tag didn’t.
The Chevrolet Cosworth Vega was never meant to be ordinary. GM promised a high-revving 2.0L engine with racing pedigree, built in the same clean room as the 427 ZL-1. It made just 110 horsepower by the time emissions rules and corporate hesitation got through with it. The Cosworth Vega launched at nearly $6,000 — double the price of a base Vega and just a few hundred shy of a Corvette. Sales tanked.
Only 3,508 Cosworth Vegas were produced between 1975 and 1976. Built to meet FIA Group 1 homologation numbers, most buyers never knew what it really was — or could’ve been. This is the full breakdown: the engine, the politics, the price, and why the CosVeg still sparks debates 50 years later.