After seven years, 238,647 Calibras had been produced at the main plant in Rüsselsheim, and also at Valmet in Uusikaupunki, Finland. The Calibra’s biggest markets were Germany, the UK, Italy, Spain and France. The 115 hp entry-level model led the sales charts with production totaling more than 130,000 units, followed by the 150 hp, 2.0-liter version, of which more than 61,000 were built.
The car later became known as the Kadett A. In addition to the standard saloon, from March 1963, the manufacturer offered an L (luxury model) and an estate (branded as the "Opel Kadett Car-A-Van"). In October 1963 Opel introduced a coupé version of the Kadett with which buyers could enjoy enhanced style at the expense of rear seat headroom.
The GSi's engine mapping had been carried out by Opel tuning specialists Irmscher. A model with the 82 PS (60 kW) 1.4 L multi point fuel injected engine, which was otherwise mechanically identical to the GSi, also became available as the Nova SRi in the United Kingdom. In January 1988, a turbocharged version of the Isuzu diesel engine was introduced, with power increased to 67 PS (49 kW).