Have a look at this render and compare the outline of both the render and photograph and see if you see any simularities?
The Coupe of course will have a unique appearance to distance itself from the Sedan and establish the 4er insignia.
So in some design details you can look at the F30 and some details and think completely opposite. Some F30 design elements are carried over but are interpreted differently on the Coupe. Think of how they can be applied completely opposite from the interpretation on the sedan.
The new 4er Coupe will of course inherit the Coupe bloodline from the 6er which means sleek looks and sportier proportions.
And some characteristics including that "bow"like design feature , strong L-Shaped headlamps and headlamps with enclosed indicators with the 4er bringing in the unit behind the headlight glass and not open like the 6er.
With 3 models scheduled for the 4er - Coupe , Cabrio and Gran Coupe. Brings the 3er family (including all M variants) up to ten models with other concepts under investigation. The excellence of the new 3er family is that it will now be more profitable than before.
The individual model lines will increase profitability as will the flexibility of the modular matrix that underpins these models.
Of course the 4er will mean You will have up to 2013 to debate about this. Intensively...