The newly adopted kid in the Volkswagen family, Porsche, has been given an enviable slice of the cake, leaving the others (especially Audi, which is a consistent top performer in the school of sales) green with envy. The cake in question is the development of future models, and Weissach’s meal includes the sports cars and big luxury cars.

Automotive News reports that Volkswagen CEO Martin Winterkorn has told Porsche that it will take the lead in developing the “modular standard matrix” that will underpin the future Panamera and Bentleys. Porsche will also be responsible for a new sports car platform (for both front-mid and rear-mid engines) that will be shared with the likes of Audi and Lamborghini. This allays fears that the 911 of tomorrow will be sitting on a VW platform.

The report also says that the recent announcement that Porsche will invest 150 million euros in its R&D centre in Weissach plus the hiring of 100 engineers is linked to this responsibility.

Audi will continue to develop the “modular longitudinal matrix,” first introduced in 2007 for the A4, A5 and Q5. The number of models to use this architecture will grow to 15, Winterkorn said. The VW brand on the other hand, will focus on what it does best, that is to take charge of a “modular transverse matrix” that will debut on the 2012 Audi A3 and the next gen Golf. This platform will underpin 40 models and 6 million units annually, providing the numbers in VW’s quest to rule the auto world.

This so called “modular toolkit strategy” is a key strategy in giving VW a competitive advantage in its bid to topple Toyota as leader in sales and profitability. It is said to reduce development, procurement and production costs by 20% and engineered hours by 30%, besides allowing for more variants without the high costs.