BusinessGreen Speed - Racing for tomorrow 3To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusiness10/20/2015October 20, 2015Marc Lieb is both an engineer and race car driver for Porsche. At the company’s R&D center, he puts the latest technology through its paces in a Porsche 919 Hybrid. Every innovation is tested in a simulator, in the laboratory and on the track.https://p.dw.com/p/1GqywAdvertisement