Real MPG: BMW 3 Series GT (2013 - 2020)
Select engine for more Real MPG information:
| Engine | Official MPG (NEDC) | Official MPG (WLTP) | Real MPG Avg. | Real MPG % | |
| 318d | 61.4–62.8 mpg | - | 52.1 mpg | 84% | |
| 318d Automatic | 57.6–64.2 mpg | - | 53.3 mpg | 88% | |
| 320d | 56.5–60.1 mpg | - | 48.6 mpg | 83% | |
| 320d Automatic | 56.5–62.8 mpg | - | 49.0 mpg | 82% | |
| 320d xDrive Automatic | 60.1 mpg | - | 42.0 mpg | 70% | |
| 320i | 42.2–45.6 mpg | - | 35.3 mpg | 80% | |
| 320i Automatic | 44.8–47.9 mpg | - | 27.2 mpg | 59% | |
| 320i xDrive | 39.2–41.5 mpg | - | 30.1 mpg | 75% | |
| 320i xDrive Automatic | 42.2–44.1 mpg | - | 30.0 mpg | 70% | |
| 325d | 54.3 mpg | - | 53.7 mpg | 99% | |
| 325d Automatic | 55.4 mpg | - | 43.9 mpg | 79% | |
| 328i | 34.9–42.2 mpg | - | 33.3 mpg | 86% | |
| 328i Automatic | 36.7–44.1 mpg | - | 30.5 mpg | 76% | |
| 330d | 48.7–54.3 mpg | - | 41.4 mpg | 80% | |
| 330d xDrive | 47.1–51.4 mpg | - | 42.8 mpg | 87% | |
| 330i Automatic | 43.5–47.1 mpg | - | 36.6 mpg | 81% | |
| 335d xDrive | 49.6 mpg | - | 39.8 mpg | 80% | |
| 335i | 34.9–41.5 mpg | - | - | - | |
| 335i Automatic | 36.7–43.5 mpg | - | - | - |
Read the Honest John review...
BMW 3 Series GT (2013 - 2020)
Hatchback version of the 3 Series, gets more practical load area, extra rear space and a softer ride, strong and economical engines.
Rivals
| BMW 3 Series GT (2013 - 2020) | 42.4 | avg mpg |
| Volvo V40 (2012 - 2019) | 51.4 | avg mpg |
| Mercedes-Benz C-Class (2014 - 2021) | 45.9 | avg mpg |
| Mercedes-Benz CLA (2013 - 2018) | 38.4 | avg mpg |
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