
Have you checked the data of the new 911s? (there is a nice web-special on porsche.de)
Highlights (Carrera S):
So, this is ticking many of the boxes... But no 4WD versions yet.
I'm also interested to see if they will offer an engine performance kit as optional: in the old Carrera S/4S it brought the output from 355 to 381hp by adding some 600rpm (max power at 7'200 instead of 6'600rpm) and some torque (400 ---> 415Nm) but at higher rpms (4'600 --> 5'500 rpm) (quite expensive at 20k, but is quite classic tuning, not just a download of software...). With additional 25-30hp at, say, 7'000 rpm (assuming the new angine has some more headroom) you get into GT3 territory... (but ESP and back seats still on board, and no silly spoilers and aerokits...) . Btw, a GT3 is at 1'395kg (60 kg less), but you would have to add another 55kg for 4WD...
Let's also see the prices, I guess it will similar base price (142k current C4S), but then all those nice optionals will bankrupt you...(add 20k for basics like el. seats, tempomat, navi, tel, bose, etc., probably 3k for PDK). This brings the overall bill to 165k (unless you really need that performance kit and the ceramic brakes, then we are talking 200k...).