The Manta A was released in September 1970, two months ahead of the then new Opel Ascona on which it was based. A competitor to the Ford Capri, it was a two-door "three-box" coupé, and featured distinctive round tail lights, quite similar to those on the Opel GT and which in fact were used on the GT in 1973, its final model year. It took its name, and a few minor styling cues, from the Manta Ray concept car (1961), which also famously influenced the 1968 Chevrolet Corvette C3 (both Chevrolet and Opel had General Motors as their parent company).