Magic919 said:996 and 997 GT3 both used C4 chassis and tank IIRC.
Young man .. you are making me work here !!
996 GT3 has a saddle tank as per image below ..
997 GT3 and i have no info on it but i suspect it will be a saddle tank .
Obviously we now know the 991 Turbo has a saddle tank .. i don't have info so couldn,t be certain .
Basic rule of thumb is if its a 4 wheel drive system it will be a saddle tank .. but if the chassis used is from a 4 wheel drive even if it doesn't have it then it may well have a saddle tank ... in short i don't know which variant has which as its not something i need to memorise ..
I just look at a car normally lol .