Real MPG: BMW 8 Series (2018 on) M850i

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28.8
Official MPG
(NEDC)
24.8–26.4
Official MPG
(WLTP)
-
Real MPG
-
Real MPG
Average
-
of Official MPG
(NEDC)
-
of Official MPG
(WLTP)

More engines available for this model:

Engine Official MPG (NEDC) Official MPG (WLTP) Real MPG Avg. Real MPG %  
840d xDrive 46.3 mpg 38.8–44.1 mpg - -* Submit
840i - 33.2–34.4 mpg - -* Submit
*Based on WLTP MPG values

Read the Honest John review...

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.