Damn, that's one ugly rump! Like the previous 5Touring, it's got far too much sheet metal between the number plate and the bottom of the rear windscreen - rear visibility will be lousy, too. And the A-pillar is far too thick. Bring back the lovely glasshouse E39! Or even the E34... I think they could easily integrate the current side shape (with that crease along the door handles) with the more glassy look of the E34/9. They're just trying to make it look 'sportier' than the saloon, which I don't see the point of. As in most cases, the estate is better-looking than the saloon anyway (cf. E34 - not so sure about E39, they're both cracking good-looking cars - plus the Audi A6, Audi A4, last-gen Merc E-class, last-gen Subaru Legacy, Jaguar X-type, Alfa Romeo 156/159, Saab 9-5...), so I don't understand why they feel the need to make the boot look as small as they have (with that stupid tiny rear windscreen and rear side windows) yet still give it the same heavy-looking arse its predecessor had. I think the E34 had it right - make the tailgate as glassy as possible to avoid making its rear look too heavy.
And, yes, why have they made the interior EXACTLY the same as the 7-series?
And don't even get me going on the pointless abomination that is the 5GT (I sat in one recently and even though I'm not quite 5ft 10, with my head against the rear headrests, it was also wedged against the roof - some GT, eh!).