Does it matter?
Mobil 1 0w-40 is factory fill in most European vehicles, and it's proven here via UOA.
My brother just bought a Mercedes S500 (MY 2001), and it's what I put in.
Shell Helix Ultra that gets poured in Ferraris isn't "technically" group IV. Would you not trust it simply for that fact?
OVERKILL, am I a hypocrite or what!