[GH85Carrera]

Oh come on.

Yea, the very same car, both sets of tires are the exact same manufacturer and version of the exact same tire. Both have the exact same temp, and the proper tire pressure, and since it is the same car, the exact same suspension settings. The ONLY difference is one set of tires is wider.

Yea, I understand with tires, like many things there are an almost infinite set of variables.

I have been autocrossing since 1976. I remember vividly the best autocross tire was pretty much the Michelin XWX. I used up many set of them and a few XAS tires on my 1974 914 2.0. It was a very light weight (no ac) car and had great handling. I could beat a lot of the guys driving the 911s of the day.

The tires of today are clearly better in every measurable way, no doubt. But no tire advancement alone would be enough to put 205s in the rear of a modern 911. They have wider tires for more contact patch. Yea, the mass of the new 911 is way higher so it requires bigger tires to for many reasons.

Big wheels and tires are certainly driven by the style department, but the engineers want as much rubber on the ground as is feasible.

More than a few guys put super sticky race tires on a 914, and quickly found the weak points on the chassis. Porsche even sold a reinforcement kit to keep the suspension from ripping off with gummy race tires.