Well, I've ben flat out on the 'ring in the 'ring taxi E60 M5, and in other E60 M5's, and flat out on the 'ring in E39 M5's (not mine of course

) as well on the 'ring in M3's/Z4M's/Porsche's etc, and these 5 series based cars, even the smaller by comparison E39 M5, are just too big and fat for the 'ring - - imho - - they are really designed for old farts like me, to be cruising for hours at 150+mph on the 'bahn...
So this new 5 series, looks like even more of the same - - way too much iron...
I'm ashamed to say it, but I'm leaning more and more towards an E90 M3, if fatter and fatter is the direction of M5's...