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).[42]
Detail improvements, such as a new dashboard and a steering-column shift, embellished the Kapitän line in May 1950. Bigger changes were saved for March 1951, to anticipate the opening of the doors of the Frankfurt show on 19 April for an 11-day run. Its earlier fast-back style was modified to a mild notch-back contour, and a new horizontal grille – not the prettiest in Opel history – dominated the frontal view. With a higher compression ratio (still only 6.25:1), engine power was 58 bhp (43 kW; 59 PS) at 3,700 rpm and top speed was 80 mph (130 km/h). Output increased to 60 bhp (45 kW; 61 PS) during the further life of this model, which ended in July 1953.

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).[8]

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