REAL MPG:
BMW 8 Series (2018 on) 840d
Submit your Real MPG
46.3
Official MPG
30.0–39.0
Real MPG
34.5
Real MPG Average
75%
of official MPG
More engines available for this model:
| Engine | Official MPG | Real MPG Avg. | Real MPG % | |
| M850i | 28.8 mpg | 23.7 mpg | 82% |  |
Our Fuel Cost Calculator shows you which will be the best choice for you.
Compare the running costs of petrol, diesel and electric cars to make the right choice for you.
Read the Honest John review...
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BMW 8 Series (2018 on)
Comparatively, quite good value for money, engines give stonking performance and refinement, infotainment system is the best in the business.
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