New spy photos: http://www.caranddriver.com/photos-m...o-photo-466226
This car sits too low, the roof line is too low to be 3er GT!
Also, look at the door panels styling. It's the same as seen on 4er Coupe prototype! And the front is identical as well.
It's definitely a 4er-based vehicle!
This could indeed be a 4er GC / GT prototype! Yet the kink & D-pillar somehow indicate a 5dr fastback layout (ala Audi A5 SB). Will they badge it 4er GC, or 4er GT after all??? o_O
So, I stand corrected! It's not a 3er GT prototype but 4er GC /GT one!
Sorry for all the confusion.