4x4 width vs 2x4 width on the 911

[AinsleyB]

Why is the 4wd 911 wider at the rear than the 2wd version ?

I know it's got slightly wider rear tyres, but why is that ? Wouldn't the fact it's 4wd mean it has traction from all 4 wheels, therefore not needing extra traction from the rears.

Following that logic then, the 2wd ought to be wider at the rear.

Either it's just marketing, or I'm missing some logic here.

[AinsleyB]

I've a 997 2wd, my mate a 997 4wd and he is about 15mm wider (on 305's whereas I'm on 295's)

Surprising then that Porsche did it for cosmetic reasons not engineering ones

[AinsleyB]

Yes, they do look nicer fatter