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      11-13-2012, 11:19 PM   #24
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Drives: 2015 M4 DCT
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Just to throw something more to think about:

Let's assume that the rear suspension yields toe in when compressed and toe out when relaxed, as with BigJae's original assumption.

When under a cornering load the outside tire would toe-in and the inside tire would to-out, this would yield a nice rear steering into the turn. Great for high speed stability but not the best to rotate the car.

Further, when you accelerate, the traction force pulls the rear wheels forward thus increasing toe-in. If the suspension dials in more toe-in as it compresses it would make the situation worse. The same applies to braking where traction pulls the wheels back increasing toe-out. If the suspension increases toe-out as it relaxes, it would also make the situation worse under braking.

This is what leads me to believe that the suspension is tuned the other way around. Just based on intuition though. It is not easy to come to a conclusion here ...

Last edited by CanAutM3; 11-13-2012 at 11:41 PM.