In 1909, the Opel 4/8 hp pioneered the introduction of affordable mobility. It was modern with solid technology, easy to operate and manoeuvrable, enabling ambitious car owners to drive it themselves instead of relying on a chauffeur – considerably reducing the overall cost of ownership. And the quality of materials and workmanship created confidence. The first officially designated “small car” in automotive history was considered fully suitable for everyday use. The vehicle ideal for “doctors, veterinarians and lawyers” according to the adverts was available at prices from 4,000 to 5,000 Marks, while models from other manufacturers cost around 20,000 Marks. Thus the means of transport for the upper class became a vehicle for the middle class - thanks to the “Doctor's car”.
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]