A television advert in 1986 featured the Ritchie Valens hit "La Bamba" playing in the background CGI allowed a Nova to drive over vehicles in a busy city. Another advert from 1990 featured a Nova as a pet, CGI allowing it to jump through a traffic jam and briefly play a hotrod whilst stopped at traffic lights. The end featured a homage to Wacky Races, with the Nova laughing like Muttley. This advert featured Angus Deayton.
Unfortunately, Opel’s first victory in the DTM turned out to be as much of a fluke as the podium at Hockenheim. The Calibra’s fell behind once more, and resorted to occupying the lower end of the top 10. The airfield circuit at Diepholz, a third visit to the Nurburgring and the high-speed section of autobahn known as the AVUS-ring were all without meaningful results.
As it turned out, the Opels were still lacking in this department. Manuel Reuter was fastest of the two with 5th on the grid, while Keke Rosberg clocked a disappointing 9th time. Both managed to be slower than several of the lesser Mercedes. Both races left much to be desired as well, with Rosberg finishing 7th in Race 1. Reuter retired with electronic gremlins after just 6 laps, and was forced to miss Race 2. Rosberg was felled by similar issues in Race 2, and slowed after 10 laps.
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).