The current Citroen BX is 4,240 mm long, 1,680 mm wide and 1,360 mm tall, on a 2,655 mm wheelbase. It has grown 1 cm longer since the 1983 BX.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 1983–1986 | 4,230 | 1,660 | 1,361 | 2,655 | 444 | 10.2 |
| 1986–1993Current | 4,240 | 1,680 | 1,360 | 2,655 | 444 | 10.1 |
Exterior figures are manufacturer specifications for the BX, 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.