As such, the car’s 2.5L C25XE V6 was turned around 90 degrees to assume a longitudinal position. Keeping only the most essential bits, British engineering firm Cosworth turned the 170 horsepower engine into a large bore, short stroke masterpiece. Using design principles akin to those used in Formula One, the unit belted out 420 horsepower at 11,650 rpm.
As of 2014 Opel Group GmbH Is the contracted original equipment manufacturer (OEM) of Opel/Vauxhall. Adam Opel AG is the main supplier (tier 1) for the OEM; all subsidiarirs are tier 2 suppliers. Opel Group and Adam Opel are both first-tier subsidiaries of General Motors Holdings, LLC and second-tier subsidiaries of General Motors Corporation (GMC).
More or less by fait accompli, in the absence of the tools to build the Kadett, Opel found itself in the middle-priced bracket in Germany's postwar auto market, sandwiched between Volkswagen and Mercedes-Benz. This position was familiar to both GM and Opel, and one in which it did amazingly well. In 1953, output rose above 100,000 units for the first time since the war, and in 1954, when the sprawling plant by the Main River was considered completely rebuilt, 24,270 were employed at Adam Opel AG and 167,650 vehicles were built, an all-time high. Opel actually fully recovered from the consequences of the postwar era.
Cars and truck production lines were lost by Opel. As reparations for war destruction, under plans of the Allied Forces, the Soviet Union asked the Allied military government for the tools, jigs, dies, fixtures, and drawings for the Kadett. This, they said, they would use to begin auto production at an Opel subsidiary in Russian-occupied Leipzig. The equipment was duly delivered to the Soviets in June 1946, and that was the last Opel was to see of it – but not of the Kadett.
Launched in 1962, GM Europe's small car for the 1960s, the Opel Kadett, looked like a shrunk Chevy Nova, and hid a 1.0-liter water-cooled overhead-valve four-cylinder up its nose. While this motor had pre-War origins, it was a good one. It weighed just 211 lbs, revved beyond 6000 rpm, and made 54 horsepower in the high-compression 'S' version, as long as you used premium fuel.
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).