Schumacher's secret 4-wheel-steering F1 car?

Former Benetton F1 engineer, Frank Dernie, in this video reveals that Benetton designed and built a four-wheel-steering F1 car for Michael Schumacher to drive in 1993. What were its advantages/disadvantages and how did it stack up against the regular car? And why didn't it race? Dernie answers all these questions, and more, in this exclusive.....check out full post »