The current Mercedes-Benz G-Class is 4,669 mm long, 1,984 mm wide and — mm tall, on a 2,890 mm wheelbase. It has grown 39 cm longer since the 1982 G-Class.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 1982–1990 | 4,275 | 1,700 | 1,930 | 2,550 | 754 | 11.4 |
| 1990–1993 | 4,335 | 1,690 | 1,924 | 2,550 | 745 | 11.3 |
| 1993–2000 | 4,361 | 1,714 | 1,932 | 2,561 | 564 | 11.3 |
| 2000–2012 | 4,405 | 1,771 | 1,931 | 2,577 | 337 | 11.3 |
| 2012–2015 | 4,537 | 1,795 | 1,953 | 2,700 | 399 | 13.6 |
| 2015–2018 | 4,643 | 1,906 | 1,998 | 2,850 | 480 | 13.6 |
| 2018–2024 | 4,710 | 1,931 | 1,969 | 2,890 | 662 | 13.6 |
| 2024–presentCurrent | 4,669 | 1,984 | — | 2,890 | 606 | 13.6 |
Exterior figures are manufacturer specifications for the G-Class, 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.