The base car was available only as a two-door "Limousine" (sedan/saloon). Customers looking for a soft-top "Cabrio-limousine" would need to specify a "Kadett Spezial". For the first time Kadett buyers, provided they were prepared to choose a "Kadett Spezial" could also specify a four-door "Limousine" (sedan/saloon) bodied car, priced at 2,350 Marks as against 2,150 Marks for a "Spezial Cabrio-Limousine" and 2,100 Marks for a two-door "Spezial Limousine".
The Opel Performance Center in 2011 launched a hardcore version of the Corsa OPC – Corsa OPC Nürburgring Edition. The engine is the same, 1.6 litre turbo, but it has been tuned to punch out 210 PS (154 kW; 207 hp) and 250 Nm (280 Nm with overboost function) of torque at 2,250 to 5,850 rpm. 0–100 km/h time is 6.8 seconds and top speed is 230 km/h (143 mph).
After the Second World War the Soviet Union requested the tooling from the Opel Rüsselsheim car plant in the American occupation zone as part of the war reparations agreed by the victorious powers, to compensate for the loss of the production lines for the domestic KIM-10-52 in the siege of Moscow. Faced with a wide range of German "small litrage" models to choose from, Soviet planners wanted a car which closely followed the general type of the KIM – a 4-door sedan with all-metal body and 4-stroke engine. They therefore rejected both the rear-engined, two-door KdF-Wagen (future VW Beetle) and the two-stroke powered, front-wheel-drive, wooden-bodied DKW F8, built by the Auto Union Chemnitz plant in the Soviet occupation zone. The closest analog of the KIM to be found was the 4-door Kadett K38.
Both the Opel Karl and its Vauxhall Viva twin will be built alongside the new Spark in South Korea. Looking at the Opel’s measurements, we can see that the new 2016 Chevrolet Spark’s footprint will grow ever so slightly, with a 0.4-inch longer wheelbase and a 0.2-inch longer overall length. The new car’s roof is 3 inch lower overall, and the car could also weigh around 200 lb less than today’s model if the Karl’s 2070 lb curb weight is indicative of the U.S.-spec 2016 Spark’s specification.
In 1957 Opel Product Director Karl Stief was mandated by General Motors headquarters in Detroit to develop "the perfect Anti-Volkswagen" ("einen perfekten Anti-VW"). The development team was headed up by Stief, supported by Hans Mersheimer (car-body) and Werner K. Strobel (engine and running gear), under conditions of such secrecy that even now very little is known of the development history of the 1962 Kadett. It has been alleged that GM was trying to conceal a new technique of platform and design sharing between Opel and its British sister company Vauxhall, which released the strikingly similar Viva HA in 1963, a year after Opel introduced the Kadett. Over the subsequent two decades Opel and Vauxhall's ranges would rapidly converge as Vauxhall's design independence from Opel was eroded to the point where by 1985, Vauxhall's car range entirely consisted of rebadged Opel models.