BMW 750e xDrive vs Porsche Cayenne E-Hybrid: real-world fuel use
In real life the BMW 750e xDrive uses 2.4 L/100 km less fuel than the Porsche Cayenne E-Hybrid — about £496 a year at 15,000 km and £1.40/L.
970 cars in the data
BMW 750e xDrive7.4×the official figure
Official
1.1
Real world
8.0
0715 L/100 km
11,085 cars in the data
Porsche Cayenne E-Hybrid3.2×the official figure
Official
3.2
Real world
10.4
0715 L/100 km
| BMW 750e xDrive | Porsche Cayenne E-Hybrid | |
|---|---|---|
| Real fuel use (L/100 km) | 8.0 | 10.4 |
| Official fuel use (L/100 km) | 1.1 | 3.2 |
| Gap vs official | 7.4× | 3.2× |
| Distance with engine off | 23% | 21% |
| Real CO2 from fuel (g/km) | 186 | 240 |
| Official electric range (km) | 79 | 46 |
| Average kerb weight (kg) | 2,455 | 2,413 |
| Cars in the data | 970 | 11,085 |
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 750e xDrive comes out ahead for the average owner. Your own result depends mostly on how often you charge. Owners drive the BMW 750e xDrive 23% of the time with the engine off, and the Porsche Cayenne E-Hybrid 21%. Run the calculator with your own driving.