Mercedes-Benz AMG GLC 63S e Performance vs Porsche Cayenne Turbo S E-Hybrid: real-world fuel use
In real life the Porsche Cayenne Turbo S E-Hybrid uses 1.4 L/100 km less fuel than the Mercedes-Benz AMG GLC 63S e Performance — about £288 a year at 15,000 km and £1.40/L.
569 cars in the data
Mercedes-Benz AMG GLC 63S e Performance1.8×the official figure
Official
7.4
Real world
13.5
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
| Mercedes-Benz AMG GLC 63S e Performance | Porsche Cayenne Turbo S E-Hybrid | |
|---|---|---|
| Real fuel use (L/100 km) | 13.5 | 12.2 |
| Official fuel use (L/100 km) | 7.4 | 3.8 |
| Gap vs official | 1.8× | 3.2× |
| Distance with engine off | 9% | 18% |
| Real CO2 from fuel (g/km) | 312 | 281 |
| Official electric range (km) | 12 | 43 |
| Average kerb weight (kg) | 2,310 | 2,592 |
| Cars in the data | 569 | 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 Porsche Cayenne Turbo S E-Hybrid comes out ahead for the average owner. Your own result depends mostly on how often you charge. Owners drive the Mercedes-Benz AMG GLC 63S e Performance 9% 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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