What I don't get is why Mercedes and some other sources say it's a 6.3litre, whereas others state that it is a 6.2litre which would make more sense because of it's 6208cc's IIRC. Could it be something to do with heratige? I.e. with the old 300SEL 6.3
And they had *(*)55AMG for the 5.4Supercharged...