BMW 8 Series fuel economy (UK)
Official figures for the BMW 8 Series from the Vehicle Certification Agency's new car lists, 2025–2026: 16 versions after removing repeats between lists. Economy is in UK (imperial) mpg; electric versions show miles per kWh and range instead. In the most recent lists (2026, WLTP) combined economy is 25.6–34.0 mpg.
All figures on this page come from the WLTP test. WLTP is the official test for new cars from September 2017. Its figures are closer to real-world driving than the older NEDC figures.
WLTP figures, VCA lists 2026
WLTP is the official test for new cars from September 2017. Its figures are closer to real-world driving than the older NEDC figures.
| Version | Fuel | Combined | L/100 km | CO₂ g/km | In lists |
|---|---|---|---|---|---|
| 8 Series Coupé 840i M Sport Coupé · A8 · 2998 cc | Petrol | 34.0 mpg | 8.3 | 191 | 2025–2026 |
| 8 Series Coupé 840i M Sport Coupé (VH) · A8 · 2998 cc | Petrol | 34.0 mpg | 8.3 | 191 | 2025–2026 |
| 8 Series Coupé 840i M Sport Coupé · A8 · 2998 cc | Petrol | 33.6 mpg | 8.4 | 190 | 2025–2026 |
| 8 Series Coupé 840i M Sport Coupé (VL) · A8 · 2998 cc | Petrol | 33.6 mpg | 8.4 | 190 | 2025–2026 |
| 8 Series Convertible 840i M Sport Convertible · A8 · 2998 cc | Petrol | 33.2 mpg | 8.5 | 196 | 2025–2026 |
| 8 Series Gran Coupé 840i M Sport Gran Coupé · A8 · 2998 cc | Petrol | 33.2 mpg | 8.5 | 197 | 2025–2026 |
| 8 Series Convertible 840i M Sport Convertible · A8 · 2998 cc | Petrol | 32.8 mpg | 8.6 | 195 | 2025–2026 |
| 8 Series Gran Coupé 840i M Sport Gran Coupé · A8 · 2998 cc | Petrol | 32.8 mpg | 8.6 | 194 | 2025–2026 |
| 8 Series Coupé M850i xDrive Coupé · A8 · 4395 cc | Petrol | 26.9 mpg | 10.5 | 245 | 2025–2026 |
| 8 Series Coupé M850i xDrive Coupé (VH) · A8 · 4395 cc | Petrol | 26.9 mpg | 10.5 | 245 | 2025–2026 |
| 8 Series Convertible M850i xDrive Convertible · A8 · 4395 cc | Petrol | 26.4 mpg | 10.7 | 249 | 2025–2026 |
| 8 Series Coupé M850i xDrive Coupé · A8 · 4395 cc | Petrol | 26.4 mpg | 10.7 | 239 | 2025–2026 |
| 8 Series Coupé M850i xDrive Coupé (VL) · A8 · 4395 cc | Petrol | 26.4 mpg | 10.7 | 239 | 2025–2026 |
| 8 Series Gran Coupé M850i xDrive Gran Coupé · A8 · 4395 cc | Petrol | 26.4 mpg | 10.7 | 250 | 2025–2026 |
| 8 Series Convertible M850i xDrive Convertible · A8 · 4395 cc | Petrol | 25.9 mpg | 10.9 | 244 | 2025–2026 |
| 8 Series Gran Coupé M850i xDrive Gran Coupé · A8 · 4395 cc | Petrol | 25.6 mpg | 11.0 | 243 | 2025–2026 |
Using these figures
"In lists" shows which yearly VCA lists include the version; it is not the model year. Manufacturers supply figures to the VCA voluntarily, so some makes are missing from some years' lists (for example several large brands between 2019 and 2024); a gap in the years does not mean the car was not sold. Click an mpg figure to open the trip fuel cost calculator with it in UK units, or convert it with the fuel economy converter. Real-world economy is usually lower than official figures — measure yours with the MPG calculator.
Tyre and wheel sizes for this model: BMW 8 Series tyre sizes.
Source: Vehicle Certification Agency (VCA), Car Fuel Data — official data download (lists 2025–2026, downloaded 2026-10-22). © Crown copyright, reused under the licence published for this dataset on data.gov.uk (Creative Commons Attribution). Data processed by us (duplicates merged, model names tidied); the VCA is not responsible for our use of it. The VCA states that figures are supplied by manufacturers, may not be achieved in real-world driving, and are used at the user's own risk.