Porsche is now Volkswagen's largest shareholder, and it's starting to look for increased benefits from the relationship, according to Automotive News.

Porsche CEO Wendelin Wiedeking, now a member of VW's supervisory board, is looking for cooperation in a number of areas, including hybrid drivetrain technology and vehicle electronics. With Wiedeking expecting electronics to make up 35 percent of the cost of a car in the near future, cost savings through the use of common modules by the two automakers could be huge.

An obvious area for cooperation is Porsche making use of excess capacity in Volkswagen's manufacturing operations, which already supply body shells for Porsche's Cayenne. Porsche is also planning to use VW facilities to make body shells for its new Panamera model.

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