Cupra Formentor vs Mercedes-Benz CLA 250 e: real-world fuel use

In real life the Mercedes-Benz CLA 250 e uses 0.2 L/100 km less fuel than the Cupra Formentor — about £34 a year at 15,000 km and £1.40/L.
437 cars in the data
Cupra Formentor
3.7×the official figure
Official
1.4
Real world
5.3
0510 L/100 km
Full Cupra Formentor data →
27,634 cars in the data
Mercedes-Benz CLA 250 e
4.9×the official figure
Official
1.1
Real world
5.1
0510 L/100 km
Full Mercedes-Benz CLA 250 e data →
Cupra FormentorMercedes-Benz CLA 250 e
Real fuel use (L/100 km)5.35.1
Official fuel use (L/100 km)1.41.1
Gap vs official3.7×4.9×
Distance with engine off30%26%
Real CO2 from fuel (g/km)122119
Official electric range (km)5670
Average kerb weight (kg)1,7041,743
Cars in the data43727,634
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 CLA 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 CLA 250 e 26%. Run the calculator with your own driving.

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