I guess to each their own but the way I view it as posted by another comment on comparison:
The E60 made the E39 look outdated instantly.
The F10 does NOT make the E60 look outdated instantly.
The interior is a giant leap forward, though.
-integrated fender grill/signals much improved over e60
-more aggressive hood
-more streamlined rear
-increased side profile character
-entire front end falls "flat" from side profile, e60 front end nicer
-side skirts leave much to be desired compared to e60
-wheels are atrocious, definitely do not belong on an M5, maybe a civic or some teenagers beater
-rear reflectors look awful, breaks up the whole rear
meh, not too impressed......also come on, no matter how many turbos you put on the v8, I would take the legendary sound of the v10......NA > turbo