Dimensions compared

4 Series Coupe Concept (F32) 3 Series Coupe (E92)

Length 182.7 in (4,641 mm) 181.1 in (4,588 mm)
Width 71.8 in (1,826 mm) 70.2 in (1,782 mm)
Height 53.6 in (1,362 mm) 54.9 in (1,395 mm)
Wheelbase 110.6 (2,810 mm) 108.7 (2,760 mm)
Front Track 60.8 in (1,545 mm) 59.1 in (1,500 mm)
Rear track 62.7 in (1,593 mm) 59.6 in (1,513 mm)

Compared to the F30 3 Series sedan, the F32 4 Series Coupe Concept is:

0.7 inches longer
0.5 inches wider
2.7 inches lower
Same wheelbase length
0.3 inches wider front track
0.6 inches wider rear track

It looks like the 4-Series Coupe Concept is lower height than the production E92 3-Series Coupe.

I wonder if that reduced height is just for greater appeal on the show floor -- will the production 4-Series keep the reduced height?