2026 BMW M850i xDrive Convertible
4.4L 8-cyl · 8-speed automatic with select shift · AWD
Official EPA record #49218 from FuelEconomy.gov · data 2026-07-26 · every assumption below is yours to edit. How this is computed
Per month
$253.47
Per year
$3,042
Per mile
25.3¢/mi
5-year total
$15,210
Your own average replaces the EPA laboratory values — never averaged together with them — and the driving-mix setting stops applying, because a figure you measured already contains your own mix.
Notes & official EPA estimate
Official FuelEconomy.gov estimate: $4,050/year — assumes 15,000 miles/year and EPA price assumptions. The figures above use your inputs instead.
Official EPA efficiency
| Measure | Value |
|---|---|
| City MPG | 17 |
| Highway MPG | 24 |
| Combined MPG | 19 |
Official EPA estimates
| Estimate | Value |
|---|---|
| Official annual fuel cost (15,000 mi/yr) | $4,050/yr |
| Tailpipe CO₂ | 456 g/mi |
| EPA greenhouse gas score | 4/10 |
| EPA smog rating | not published |
Source: U.S. EPA / DOE FuelEconomy.gov, vehicle record #49218 (record updated 2025-10-28). Snapshot processed 2026-07-26; page data last changed 2025-10-28.
Related configurations
Same year, same family
- 840i Coupe · 3.0L 6-cyl · 8-speed automatic with select shift · RWD2026
- 840i xDrive Coupe · 3.0L 6-cyl · 8-speed automatic with select shift · AWD2026
- 840i Convertible · 3.0L 6-cyl · 8-speed automatic with select shift · RWD2026
- 840i xDrive Convertible · 3.0L 6-cyl · 8-speed automatic with select shift · AWD2026
- M850i xDrive Coupe · 4.4L 8-cyl · 8-speed automatic with select shift · AWD2026
- 840i Gran Coupe · 3.0L 6-cyl · 8-speed automatic with select shift · RWD2026
- 840i xDrive Gran Coupe · 3.0L 6-cyl · 8-speed automatic with select shift · AWD2026
- M850i xDrive Gran Coupe · 4.4L 8-cyl · 8-speed automatic with select shift · AWD2026
Adjacent model years
- 840i Coupe · 3.0L 6-cyl · 8-speed automatic with select shift · RWD2025
- 840i xDrive Coupe · 3.0L 6-cyl · 8-speed automatic with select shift · AWD2025
- 840i Convertible · 3.0L 6-cyl · 8-speed automatic with select shift · RWD2025
- 840i xDrive Convertible · 3.0L 6-cyl · 8-speed automatic with select shift · AWD2025
- M850i xDrive Coupe · 4.4L 8-cyl · 8-speed automatic with select shift · AWD2025
- M850i xDrive Convertible · 4.4L 8-cyl · 8-speed automatic with select shift · AWD2025
- 840i Gran Coupe · 3.0L 6-cyl · 8-speed automatic with select shift · RWD2025
- 840i xDrive Gran Coupe · 3.0L 6-cyl · 8-speed automatic with select shift · AWD2025