Announced in November 1947, production of the postwar Olympia, with austere painted hubcaps, began in December 1948 and allowed a modest return to export sales in that year. In October 1948, the Kapitän came back to the Opel line-up, unchanged except for such details as the shape of the headlights and improvements in the leaf springs and dampers. Prices in 1948 were 9950 DM for the Kapitän and 6,785 DM for the Olympia (the Deutschmark having replaced the Reichsmark on 20 June 1948).
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 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).