The performance numbers comparison do omit one big factor . Many of those 911 cars of the past had nothing even close to its price which could compete .
Don't get me wrong there were other fast cars but the ones with a high level of refinement cost more than Porsche .
Skipping generations and drawing comparisons is fun for amusement but technology evolves .
It's almost like asking if Mark Spitz would have beat Michael Phelps in the same time period whereas now coaching ,diet , sport medicine have grown.
A Macan Vs an older Porsche really only amounts to showing progress .
Pretty much agree from your point of view. It's hard to explain what I mean. Will try another analogy. Food & wine. Remember the film Ratatouille? (sp?). The food expert was blown away by a dish that made him remember about what his mom cooked for him, in his youth. A good chef wants to make you remember the tastes that you loved in your youth.
Same with good wines. You use descriptors to describe the aromas and flavors that you have tasted in the past, in your youth. Peaches, chocolate, berries.
For me, that analogy also applies to the cars you loved in your youth, in my case and many others I think, Porsches. Not saying I am right, just presenting another point of view.
Edited later to make my point clearer:
The two person and two midget occupancy limitation of the 911 in the past, was because the motorsport technology was just not there. Now that it is, four door is better, IMHO.