Cupra Formentor vs Mercedes-Benz B 250 e: real-world fuel use
In real life the Mercedes-Benz B 250 e uses 0.8 L/100 km less fuel than the Cupra Formentor — about £178 a year at 15,000 km and £1.40/L.
437 cars in the data
Cupra Formentor3.7×the official figure
Official
1.4
Real world
5.3
0510 L/100 km
10,331 cars in the data
Mercedes-Benz B 250 e4.2×the official figure
Official
1.1
Real world
4.5
0510 L/100 km
| Cupra Formentor | Mercedes-Benz B 250 e | |
|---|---|---|
| Real fuel use (L/100 km) | 5.3 | 4.5 |
| Official fuel use (L/100 km) | 1.4 | 1.1 |
| Gap vs official | 3.7× | 4.2× |
| Distance with engine off | 30% | 35% |
| Real CO2 from fuel (g/km) | 122 | 103 |
| Official electric range (km) | 56 | 69 |
| Average kerb weight (kg) | 1,704 | 1,729 |
| Cars in the data | 437 | 10,331 |
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 B 250 e comes out ahead for the average owner. Your own result depends mostly on how often you charge. Owners drive the Cupra Formentor 30% of the time with the engine off, and the Mercedes-Benz B 250 e 35%. Run the calculator with your own driving.