2025 BMW 8 Series dimensions: length, width, height, weight, cargo
Length
191.2in long
- 15 ft 11.2 in. 4.86 m.
- 74.8 in wide, 53.0 in tall.
- 840i RWD.
- Mid-size coupe.
Dimensions by trim
| Trim | Length | Width | With mirrors | Height | Wheelbase | Ground clearance | Turning circle |
|---|---|---|---|---|---|---|---|
| 840i RWD | 191.2 in | 74.8 in | 84.1 in | 53.0 in | 111.1 in | 4.8 in | 38.1 ft |
| 840i xDrive AWD | 191.2 in | 74.8 in | 84.1 in | 53.0 in | 111.1 in | 4.9 in | 38.1 ft |
| 840i Coupe RWD | 191.1 in | 74.9 in | 84.1 in | 52.8 in | 111.1 in | 4.8 in | 38.2 ft |
| 840i Gran Coupe RWD, 840i xDrive Gran Coupe AWD, M850i xDrive Gran Coupe AWD, Alpina B8 Gran Coupe AWD, M8 Competition Gran Coupe AWD | 191.2 in | 74.8 in | 84.1 in | 53.1 in | 111.1 in | 5.3 in | 41.4 ft |
| 840i xDrive Coupe AWD | 191.1 in | 74.9 in | 84.1 in | 52.8 in | 111.1 in | 4.8 in | 39.0 ft |
| 840i Convertible RWD | 191.1 in | 74.9 in | 84.1 in | 52.7 in | 111.1 in | 4.6 in | 38.2 ft |
| 840i xDrive Convertible AWD | 191.1 in | 74.9 in | 84.1 in | 52.7 in | 111.1 in | 4.6 in | 39.0 ft |
| M850i xDrive Coupe AWD, M850i xDrive Convertible AWD | 191.2 in | 74.9 in | 84.1 in | 53.0 in | 111.1 in | 5.0 in | 39.0 ft |
| M850i xDrive AWD | 191.2 in | 74.8 in | 84.1 in | 53.0 in | 111.1 in | 4.9 in | 39.0 ft |
| M8 Competition AWD | 191.2 in | 74.8 in | 84.1 in | 53.1 in | 111.1 in | 4.9 in | 41.4 ft |
| Trim | Curb weight |
|---|---|
| 840i RWD | 3,902 lb to 4,769 lb |
| 840i xDrive AWD | 4,012 lb to 4,769 lb |
| 840i Coupe RWD | 3,933 lb to 4,769 lb |
| 840i Gran Coupe RWD | 4,180 lb to 4,769 lb |
| 840i xDrive Coupe AWD | 4,081 lb to 4,769 lb |
| 840i xDrive Gran Coupe AWD | 4,281 lb to 4,769 lb |
| 840i Convertible RWD | 4,211 lb to 4,769 lb |
| 840i xDrive Convertible AWD | 4,356 lb to 4,769 lb |
| M850i xDrive Gran Coupe AWD | 4,696 lb |
| M850i xDrive Coupe AWD | 4,478 lb |
| M850i xDrive AWD | 4,427 lb |
| M850i xDrive Convertible AWD | 4,736 lb |
| Alpina B8 Gran Coupe AWD | 4,831 lb |
| M8 Competition Gran Coupe AWD | 4,480 lb |
| M8 Competition AWD | 4,560 lb |
| Trim | Cargo, seats up | Cargo, max | Front legroom | Rear legroom | Front headroom | Rear headroom |
|---|---|---|---|---|---|---|
| 840i RWD, 840i xDrive AWD, M850i xDrive AWD | 14.8 cu ft | 10.0 cu ft | 42.1 in | 36.6 in | 38.9 in | 37.0 in |
| 840i Coupe RWD, 840i xDrive Coupe AWD, M850i xDrive Coupe AWD | 14.8 cu ft | N/A | 42.1 in | 29.5 in | 38.9 in | 33.6 in |
| 840i Gran Coupe RWD, 840i xDrive Gran Coupe AWD, M850i xDrive Gran Coupe AWD, Alpina B8 Gran Coupe AWD, M8 Competition Gran Coupe AWD | N/A | 15.5 cu ft | 42.1 in | 36.6 in | 39.1 in | 37.0 in |
| 840i Convertible RWD, 840i xDrive Convertible AWD, M850i xDrive Convertible AWD | 12.4 cu ft | N/A | 42.1 in | 29.5 in | 38.9 in | 34.7 in |
| M8 Competition AWD | 14.8 cu ft | 14.8 cu ft | 42.1 in | 36.6 in | 39.1 in | 37.0 in |
Weight
840i RWD: curb weight not listed.
Garage fit
| Garage | Fits | Spare length | Each side |
|---|---|---|---|
| Single, 12 x 22 ft | Yes | 72.8 in | 34.6 in |
| Single, 14 x 24 ft | Yes | 96.8 in | 46.6 in |
| Double, 20 x 20 ft | Yes | 48.8 in | 82.6 in |
| Double, 24 x 24 ft | Yes | 96.8 in | 106.6 in |
| Door | Fits | Spare width | Above roof |
|---|---|---|---|
| 8 ft wide, 7 ft tall | Yes | 11.9 in | 31.0 in |
| 9 ft wide, 7 ft tall | Yes | 23.9 in | 31.0 in |
Door width check uses the mirrors: 84.1 in.
Your garage
Second car
Garage 12 x 22 ft. Door 9 x 7 ft.
- Yes. 72.8 in spare length. 34.6 in each side.
- Door: 23.9 in spare width. 31.0 in above the roof.
Size class
Mid-size coupe.
Longer than 79% of 35 coupes (2025).
Median of 35 coupes (2025): 185.0 in long.
Cargo, seats up: 14.8 cu ft. More than 90% of 21 coupes (2025).
Bigger and smaller rivals
| Model | Length | vs 8 Series | Cargo, seats up | vs 8 Series |
|---|---|---|---|---|
| Maserati GranTurismo | 195.2 in | +4.0 in | 10.9 cu ft | -3.9 cu ft |
| Lamborghini Revuelto | 194.8 in | +3.6 in | N/A | N/A |
| Aston Martin Vanquish | 192.5 in | +1.3 in | 8.8 cu ft | -6.0 cu ft |
| BMW M8 | 191.3 in | about the same | 14.8 cu ft | about the same |
| BMW 8 Series | 191.2 in | - | 14.8 cu ft | - |
| Mercedes-Benz CLE | 191.0 in | about the same | N/A | N/A |
| BMW M4 | 189.1 in | -2.1 in | 12.0 cu ft | -2.8 cu ft |
| Lexus LC | 187.4 in | -3.8 in | N/A | N/A |
| Lotus Emira | 173.7 in | -17.5 in | 5.3 cu ft | -9.5 cu ft |
Legroom and headroom
840i RWD.
- Front legroom
- 42.1 inMore than 43% of 22 coupes (2025).
- Rear legroom
- 36.6 inMore than 93% of 16 coupes (2025).
- Front headroom
- 38.9 inMore than 64% of 23 coupes (2025).
- Rear headroom
- 37.0 inMore than 88% of 17 coupes (2025).
What this cannot tell you
Outline is a body-style template scaled to these numbers.
Garage fit ignores shelves, steps and open doors.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree