1999 Audi A4 Airbag on 2040-parts.com

Watch the Porsche 911 GT3 rear-steering system work

A handful of manufacturers have offered four-wheel steering in the past including Honda, Nissan, BMW, Mitsubishi, Mazda and, most recently, Acura and Porsche. On Monday, suspension expert Elephant Racing uploaded a video to its YouTube channel demonstrating the feature on the 2014 Porsche 911 GT3. In most four-wheel steering cars--Acura and Porsche included—a computer controls the movable rear wheels.

Project Car Hell, Unidentifiable German Coupes Edition: Borgward Isabella Coup

Welcome back to Project Car Hell, where every iron atom always finds the oxygen it seeks, every vehicle ran when parked, and the parts you need are always in another continent! Last week, we got all patriotic with a couple of classic American muscle cars, and that just whetted our appetite for cars that were smaller and more, you know, German. We gave you a tough choice between a couple of air-cooled Volkswagens not long ago, but this time we're interested in German marques that disappeared in the 1960s: NSU and Borgward.

Video: GM Europe's Mark Adams answers Twitter questions, gives tips to aspiring designers

GM Europe's vice president of design Mark Adams has given aspiring designers tips to stand out from the crowd with their portfolios in a Twitter Q&A session. In the video session Adams offered advice to one participant who asked, "If there was one piece of advice you would give to someone wanting to become a designer, what would it be and why?". With portfolios, he explained, it's not just about the talent, it's about having the ability to convey your thought process along the way.