Real MPG: BMW 8 Series (2018 on) 840d xDrive

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46.3
Official MPG
(NEDC)
38.8–44.1
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 %  
840i - 33.2–34.4 mpg - -* Submit
M850i 28.8 mpg 24.8–26.4 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.