Saturday, 13 February 2010

Four Wheel Steer

Four wheel steering has been reinvented for the BMW 5-series. Below 60kph (37mph) the rear wheels turn the opposite way to the fronts, making parking easier. Going faster they turn in the same direction, which makes the car turn in quicker. What Car? was lukewarm about “active” steering, although felt it had quite a profound effect. There was, “rarely a corner or roundabout that requires more than a quarter turn of the wheel. The 5-series remains utterly stable throughout. However we found that the car fitted with the standard electrically powered steering rack offered significantly more feedback, and although requiring a bit more arm-twirling more satisfying. We’d forgo the option of active steering.”

Nothing new about four wheel steering for cars. See my feature from The Sunday Times magazine of 8 December 1985. I liked Honda’s described in The Sunday Times column of 6 September 1987. Honda did a slalom test at the press launch I thought convincing.

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