Photo: BMW 8 Series by Dinkun Chen, CC BY-SA 4.0, via Wikimedia Commons. It shows the model, not always this exact version.
BMW · model year 2025
2025 BMW M850i xDrive Convertible
Subcompact · All-Wheel Drive · Gas · EPA class: Subcompact Cars
EPA figures · 2025fueleconomy.gov
19MPG combined
17/24MPG city / highway
$4,350fuel a year
458 g CO₂ per mile 4.4 L 8-cyl turbo Automatic (S8)
This car on fueleconomy.gov, read 2 October 2026. Your own figures depend on how and where you drive.
Where it places
Against fuel-efficient AWD and 4WD cars
Chart average 23 MPGBest 54 MPG
Lowest on the chart $1,250Chart average $3,611
Every figure on record
- Combined MPG
- 19 MPG
- City MPG
- 17 MPG
- Highway MPG
- 24 MPG
- Annual fuel cost
- $4,350
- Tailpipe CO₂
- 458 g per mile
- Model year
- 2025
- Body
- Car
- EPA size class
- Subcompact Cars
- Drive
- All-Wheel Drive
- Engine
- 4.4 L 8-cyl turbo
- Transmission
- Automatic (S8)
- Fuel
- Gasoline
Efficiency
Running cost
The car
Powertrain
Cars around it
2025 BMW M850i xDrive Coupe
19 MPG · $4,350 fuel a year 2026 BMW M850i xDrive Convertible
19 MPG · $4,350 fuel a year 2026 BMW M850i xDrive Coupe
19 MPG · $4,350 fuel a year 2026 BMW M850i xDrive Gran Coupe
19 MPG · $4,350 fuel a year Ram2025 Ram 1500 4WD
19 MPG · $3,550 fuel a year 2025 BMW Alpina B8 Gran Coupe
19 MPG · $4,350 fuel a year 2025 BMW M850i xDrive Gran Coupe
19 MPG · $4,350 fuel a year
2027 Mercedes-Benz S580 4matic
19 MPG · $4,350 fuel a yearEvery alternative to the 2025 BMW M850i xDrive Convertible →