Cutting development costs
Neumann also said Opel is looking to cut development costs of model updates by increasingly relying on established platforms.
Opel will not develop new underpinnings for each generation of vehicles. "We cannot develop everything from scratch all the time," he said.
The new Opel Corsa, unveiled at the Paris show for the first time, continues to use a modified version of a GM-Fiat platform already being used by the current model.
Reuters contributed to this report