Thanks Palbay, nice shots.
As for physical size, the concept X4 has the same length and wheelbase as the X3, while being wider and lower than the X3. Here's how the dimensions compare and a look at how the styling differs between the two.
Also see:
Side by Side Look at BMW X4 Concept and X6 SAV
| X4 Concept (F26) | X3 (F25) |
Dimensions | | |
Length | 183 in (4,648 mm) | 183 in (4,648 mm) |
Width | 75.4 in (1,915 mm) | 74.1 in (1,881 mm) |
Height | 63.9 in (1,622 mm) | 65.4 in (1,661 mm) |
Wheelbase | 110.6 (2,810 mm) | 110.6 (2,810 mm) |