The Corsa D was created using a new version of the SCCS platform, which was co developed by General Motors/Opel and Fiat, and is also employed by the 2006 Fiat Grande Punto. The first official pictures of the Corsa D, were released by Opel in May 2006. In the United Kingdom, What Car? awarded it 2007 Car of the Year. The Corsa D placed second in the European Car of the Year for 2006, only behind the Ford S-Max.
Using a gear-driven system, power was taken from the 6-speed sequential gearbox forward to the half-shafts, which appeared to embrace the raucous 54 degree V6. By doing this Opel had cleverly avoided a nose-heavy car, giving them a significant handling advantage. Weighing in at 1040 kg (2292 lbs)m the car looked like a serious challenger for Alfa Romeo.
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).