The current BMW 8-Series is 4,849 mm long, 1,903 mm wide and 1,346 mm tall, on a 2,823 mm wheelbase. It has grown 9 cm longer since the 1989 8-Series.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 1989–1999 | 4,762 | 1,855 | 1,339 | 2,684 | 316 | 11.5 |
| 2018–2026Current | 4,849 | 1,903 | 1,346 | 2,823 | 420 | 11.9 |
Exterior figures are manufacturer specifications for the 8-Series, 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.