BMW XM vs Porsche Cayenne Turbo S E-Hybrid: real-world fuel use
In real life the BMW XM uses 0.7 L/100 km less fuel than the Porsche Cayenne Turbo S E-Hybrid — about £137 a year at 15,000 km and £1.40/L.
2,846 cars in the data
BMW XM6.9×the official figure
Official
1.7
Real world
11.5
0715 L/100 km
890 cars in the data
Porsche Cayenne Turbo S E-Hybrid3.2×the official figure
Official
3.8
Real world
12.2
0715 L/100 km
| BMW XM | Porsche Cayenne Turbo S E-Hybrid | |
|---|---|---|
| Real fuel use (L/100 km) | 11.5 | 12.2 |
| Official fuel use (L/100 km) | 1.7 | 3.8 |
| Gap vs official | 6.9× | 3.2× |
| Distance with engine off | 33% | 18% |
| Real CO2 from fuel (g/km) | 266 | 281 |
| Official electric range (km) | 81 | 43 |
| Average kerb weight (kg) | 2,785 | 2,592 |
| Cars in the data | 2,846 | 890 |
Bold = better. Source: EEA OBFCM real-world data, reporting year 2024, CC BY 4.0.
Which one is cheaper to run?
On fuel alone, the BMW XM comes out ahead for the average owner. Your own result depends mostly on how often you charge. Owners drive the BMW XM 33% of the time with the engine off, and the Porsche Cayenne Turbo S E-Hybrid 18%. Run the calculator with your own driving.
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