The just revealed X4 Concept [full details
] previews the production X4 (F26) SAV which will share the same platform and underpinnings with the X3 (F25) when the X4 hits the market next year. The two will share the same powertrains and have mirroring model lines, as the X6 does with the X5.
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)|
|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)|