BMW 550e xDrive vs Mercedes-Benz GLC 300 de 4MATIC: real-world fuel use
In real life the Mercedes-Benz GLC 300 de 4MATIC uses 1.0 L/100 km less fuel than the BMW 550e xDrive — about £218 a year at 15,000 km and £1.40/L.
1,500 cars in the data
BMW 550e xDrive8.0×the official figure
Official
0.9
Real world
7.1
0510 L/100 km
51,818 cars in the data
Mercedes-Benz GLC 300 de 4MATIC4.5×the official figure
Official
1.3
Real world
6.1
0510 L/100 km
| BMW 550e xDrive | Mercedes-Benz GLC 300 de 4MATIC | |
|---|---|---|
| Real fuel use (L/100 km) | 7.1 | 6.1 |
| Official fuel use (L/100 km) | 0.9 | 1.3 |
| Gap vs official | 8.0× | 4.5× |
| Distance with engine off | 29% | 20% |
| Real CO2 from fuel (g/km) | 164 | 160 |
| Official electric range (km) | 87 | 73 |
| Average kerb weight (kg) | 2,232 | 2,232 |
| Cars in the data | 1,500 | 51,818 |
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 Mercedes-Benz GLC 300 de 4MATIC comes out ahead for the average owner. Your own result depends mostly on how often you charge. Owners drive the BMW 550e xDrive 29% of the time with the engine off, and the Mercedes-Benz GLC 300 de 4MATIC 20%. Run the calculator with your own driving.