[s-cars] Front & Rear Track

[Cody Forbes]

It's long and complicated suspension geometry math including the effect of wheel rates and roll centers. The quick way to say it is that, generally speaking, increasing track width on one axle relative to the other will add cornering grip on that end of the car. 

Audi's being FRONT weight and drive biased (I think you typo'd) tend to understeer like the USS Enterprise with one broken rudder, so increasing that track width helps reduce the understeer from nuclear carrier levels down to battleship levels.

BMW's sport sedans are a rather neutral weight bias. Depending on the model the engine is 50% or more behind the front axle line. Plus, of course, they are rear wheel drive. This tends to make their largest problem oversteer especially on power application, so they need more grip in the rear.

-Cody Forbes (mobile)

> On Sep 20, 2016, at 11:32 PM, Tony <tony.curran at sympatico.ca> wrote:
> 
> Hi all,
> 
> A fundamental question. Looking at the front and rear track, Audis are wider at front. On the other hand, BMWs are wider at the rear.
> 
> I know BMWs are rear wheel drive, but Quattro is rear biased.
> 
> Would wider rear track be more optimal?
> 
> Your thoughts?
> 
> Cheers,
> 
> Tony
> 
> 96 S6
> 
> Sent from my iPad
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