The current BMW X4 is 4,747 mm long, 1,926 mm wide and 1,621 mm tall, on a 2,864 mm wheelbase. It has grown 8 cm longer since the 2014 X4.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 2014–2018 | 4,671 | 1,881 | 1,624 | 2,810 | 500 | 11.9 |
| 2018–presentCurrent | 4,747 | 1,926 | 1,621 | 2,864 | 525 | 12.1 |
Exterior figures are manufacturer specifications for the X4, averaged per generation across its variants and shown for the most common body style. Generations with the same size are merged. Boot capacity is the seats-up figure where the manufacturer quotes one.