Porsche is under pressure from parent VW to nearly double its sales to around 150 000 units a year.It's a dauntng task, even for a brand with unrivalled cachet. Sales of its signature 911 are dwindling globally and have been overtaken by the Cayenne SUV and four-door Panamera performance sedan.Porsche knows it must find new market niches to increase sales and an entry-level car slotting in below the Boxster range and a smaller SUV have been proposed as solutions.To help, VW has announced that Porsche will invest R1.3-billion in a new design centre with a dedicated wind-tunnel to enable Porsche to execute styling changes more quickly and shorten development timetables. The design centre will have an innovative electronics division, probably dedicated to battery and electric-drive research for hybrid vehicles such as the company's radical 918 Spyder. The Porsche statement added: "Increased capacity is urgently required in the Weissach centre for sports-car construction."Porsche’s new wind tunnel and upgraded design facility will create 100 jobs for engineering staff.