Actually the T6 and 6sp Aisin combo has been pretty damn stout from the numbers I've dug up.
311hp/325lbft in the V8. My non Polestar'ed T6 (yes a travesty, yes I know) is 300/325 so a Polestar tune probably would put me quicker especially with that instant grunt.
I think my biggest issue with the S80 is that I find the overall look to be really hurt by the overhang. Somehow Audi hides it better....probably behind big ass wheels and extra styling elements and also that the A6 is about 4 inches longer than an S80...it looks visually lower.
I think it's more than just hiding it, it actually does have less of an overhang. I don't have measurements, but I remember Audi making a big fuss about redesigning its front suspensions a few years back to move the front wheels forward to get better weight distribution. Added bonus of that is less overhang visually.
Ah yes I think you are right, although every time I see an A6 or A8 it still does look overbite-y. I don't think that platform design accounts for everything though. They moved the front wheels but Audi engines are still mounted longitudinally which would require more space in front of the front axle compared to transverse no? So the starting point may have been worse.
With the new XC90, looking at the overhang it doesn't look too bad at all. About 50/50 between the wheel well to front door and to front bumper. Maybe the SPA platform change enabled this, perhaps the change to 4cyl only meant less stuff to fit under the hood in general, etc.
But in any case I'm fairly optimistic about the new S90 being a good looking car.