Real MPG: BMW 6 Series Convertible (2011 - 2018) 640d
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Submit your Real MPG
49.6–50.4
Official MPG(NEDC)
32.6–42.9
Real MPG
38.0
Real MPGAverage
76%
of Official MPG(NEDC)
More engines available for this model:
| Engine | Official MPG (NEDC) | Official MPG (WLTP) | Real MPG Avg. | Real MPG % | |
| 640d Automatic | 50.4 mpg | - | 37.4 mpg | 74% | |
| 640i | 35.8–36.2 mpg | - | 28.9 mpg | 80% | |
| 640i Automatic | 35.8 mpg | - | 27.0 mpg | 75% | |
| 650i | 30.7 mpg | - | - | - | |
| 650i Automatic | 26.4 mpg | - | - | - |
Read the Honest John review...
BMW 6 Series Convertible (2011 - 2018)
Incredibly smooth and refined. One of the best convertibles at minimising wind turbulance with the top down. Very well equipped as standard. Good ride quality.
Rivals
| BMW 6 Series Convertible (2011 - 2018) | 35.7 | avg mpg |
| Audi RS5 (2010 - 2016) | 18.0 | avg mpg |
| Porsche Boxster (2012 - 2016) | 30.7 | avg mpg |
| Mercedes-Benz E-Class Cabriolet (2010 - 2017) | 40.5 | avg mpg |
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