Audi A8 vs Porsche Cayenne E-Hybrid: real-world fuel use
In real life the Audi A8 uses 1.0 L/100 km less fuel than the Porsche Cayenne E-Hybrid — about £210 a year at 15,000 km and £1.40/L.
791 cars in the data
Audi A84.6×the official figure
Official
2.0
Real world
9.4
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
| Audi A8 | Porsche Cayenne E-Hybrid | |
|---|---|---|
| Real fuel use (L/100 km) | 9.4 | 10.4 |
| Official fuel use (L/100 km) | 2.0 | 3.2 |
| Gap vs official | 4.6× | 3.2× |
| Distance with engine off | 19% | 21% |
| Real CO2 from fuel (g/km) | 217 | 240 |
| Official electric range (km) | 57 | 46 |
| Average kerb weight (kg) | 2,405 | 2,413 |
| Cars in the data | 791 | 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 Audi A8 comes out ahead for the average owner. Your own result depends mostly on how often you charge. Owners drive the Audi A8 19% of the time with the engine off, and the Porsche Cayenne E-Hybrid 21%. Run the calculator with your own driving.