The current BMW 6-Series is 4,894 mm long, 1,894 mm wide and 1,369 mm tall, on a 2,855 mm wheelbase. It has grown 14 cm longer since the 1976 6-Series.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 1976–1982 | 4,755 | 1,725 | 1,365 | 2,626 | 413 | 11.2 |
| 1982–1989 | 4,778 | 1,725 | 1,364 | 2,628 | 413 | 11.2 |
| 2004–2011 | 4,824 | 1,855 | 1,373 | 2,780 | 450 | 11.4 |
| 2011–2018Current | 4,894 | 1,894 | 1,369 | 2,855 | 460 | 11.7 |
Exterior figures are manufacturer specifications for the 6-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.