KresoF1:

You should read what I wrote more carefully. First paragraph is about dry unrestriced autobahn in Germany.

Second paragraph is about wet road or autobahn. 

On wet autobahn even at 120km/h 991.2 Turbo S or R8 V10 Plus have way more traction then only RWD 570S. So, safety margin is bigger and that inspire more confidence. 

 

once you have puddles of standing waters (which is vey often on bad european highways) your AWD is good for nothing.

all in all it is a mixed blessing, certainly advantageous on wet roads but across the board in real life not a 'must have'.