Quote:
Originally Posted by Undertoad
A classic scene which tells us about the benefits of "posi-track" in the 1960s.
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So that a car does not crash, all wheels must rotate independent of each other. Positrack and other systems used in all-wheel drives must keep wheels from rotating separately. Otherwise one wheel will spin and no other wheel will move the vehicle. Positrack (as noted earlier was just another word for how it is still done.
Four wheel drive gets you going. That same system then makes a vehicles less stable and less safe at higher speeds. Jeeps are particularly barbaric - less safe. Just one of many reasons why all-wheel drive vehicles roll over or spin off roads at higher speeds. And why they eat tires faster.
Many just know all-wheel drive is safer because feelings say so. Same advertising myths ignore another fact. Cars with anti-lock brakes also crash more often. Why do numbers contradict popularly held beliefs? Most of us even believed a lie about Saddam's WMDs - because only spin said it must be so.
A safety feature that should be standard in an Altima or Camry is speed sensitive steering. Far more important than all-wheel drive or anti-lock brakes. Just another reason why those vehicles are rated batter. But rarely known to many only informed by advertising.