Real MPG: BMW Z4 (2009 - 2016) sDrive 18i Automatic
                
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                                41.5
                            
                            Official MPG(NEDC)
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                            Real MPG
                        
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                            Real MPGAverage
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                                of Official MPG(NEDC)
More engines available for this model:
| Engine | Official MPG (NEDC) | Official MPG (WLTP) | Real MPG Avg. | Real MPG % | |
| sDrive 18i | 41.5 mpg | - | 33.1 mpg | 80% | |
| sDrive 20i | 41.5 mpg | - | 34.8 mpg | 84% | |
| sDrive 20i Automatic | 41.5 mpg | - | 34.3 mpg | 83% | |
| sDrive 23i | 33.2–34.4 mpg | - | 31.6 mpg | 93% | |
| sDrive 23i Automatic | 34.4 mpg | - | 31.4 mpg | 91% | |
| sDrive 28i | 41.5 mpg | - | 37.1 mpg | 89% | |
| sDrive 28i Automatic | 41.5 mpg | - | 29.1 mpg | 70% | |
| sDrive 30i | 33.2 mpg | - | 31.0 mpg | 93% | |
| sDrive 30i Automatic | 34.0 mpg | - | 31.8 mpg | 94% | |
| sDrive 35i | 30.1–31.0 mpg | - | 25.3 mpg | 83% | |
| sDrive 35i Automatic | 31.0–31.4 mpg | - | 27.1 mpg | 87% | 
Read the Honest John review...
BMW Z4 (2009 - 2016)
                Stylish and refined. Strong performance from six-cylinder engines. Much improved steering feel after 2013 revamp.
            
        Rivals
| BMW Z4 (2009 - 2016) | 32.3 | avg mpg | 
| Peugeot 308 CC (2009 - 2015) | 42.4 | avg mpg | 
| Lexus IS 250C (2009 - 2013) | 31.8 | avg mpg | 
| Audi TT RS (2009 - 2015) | 31.2 | avg mpg | 
