Interior in that W213 is hands down.
But exterior on the W213 can vary a lot.
This is "exclusive" exterior, doesn't know which package is on 5er, sport or ?
On the w213 you can choose totaly different appearance.
Here it's classic, conservative, with latticed grill, restrained optics.
With Avantagrde package it's totaly different character.
Sign in grill, sportier exterior.
And ofcourse AMG package.
On the other hand, appearance of the 5er can't vary that much, mostly because of the grill.
You have one grill, kidneys for all packages.
Also they have different approach also.
5er is more aggressive while W213 is more conservative.
If you look closer, they "always" have opposite approach.
W211 vs E60, W212 vs F10 and now W213 vs G30.
And that's god, they are not similar, on the contrary.