Ok, I think this is getting confusing at this point taking into account the last edits, this is not a 5th gen, nor a 6th gen e-tron, it's just the 6th gen C9 A6 (Typ 4L).
Audi naming policy has been quite a headache lately, I think this was supposed to be the new A7, but instead, remained as a A6, so to recap, the current A6 lineup is as follows:
A6 Sportback 6th Gen A6 Avant 6th Gen A6 Sportback e-tron A6 Avant e-tron
So the ICE versions still need to be listed, they don't even share the exterior design.