Carl-Peter Forster: The new strategy helps free up Opel's resources.
"It will be Saab's responsibility to package these systems into future Opels," said GM Europe President Carl-Peter Forster.
Saab is designing the stereo and navigation systems for the next-generation Opel Corsa small car that will be introduced at the end of 2006.
GM Europe managers think Saab excels at packaging its infotainment systems so they are easy to use.
Saab's Trollhattan, Sweden, plant will assume a greater role within GM Europe in specialist fields where its strengths can benefit other GM brands. For example, Saab will help develop passive safety systems for GM Europe's brands, Forster said.
Forster, who became chairman of Saab's board on April 1, said the new strategy for Saab helps free up resources within Opel to create products.
Last month GM Europe said the next-generation Saab 9-3 and Opel Vectra will be built at Opel's plant in Ruesselsheim, Germany. Production starts in 2008.
Trollhattan, which is Saab's main plant, lost a bid for the work.
Forster also said that in some respects Saab has lost sight of its aeronautical heritage, but that is about to change.
"We will see and feel the aero heritage in the next-generation Saabs," Forster said at the Geneva auto show last month.
A key feature of future Saabs will be the return of the brand's once-characteristic wraparound windshield to create a distinct design language for Saab.
"It's like the canopy of an aircraft," Forster said.
Saab began building cars in 1949, 12 years after it was founded as an aircraft manufacturer.