Audi Q5 vs Mercedes-Benz E 300 e 4MATIC: real-world fuel use

In real life the Mercedes-Benz E 300 e 4MATIC uses 0.2 L/100 km less fuel than the Audi Q5 — about £44 a year at 15,000 km and £1.40/L.
515 cars in the data
Audi Q5
4.1×the official figure
Official
1.6
Real world
6.8
0510 L/100 km
Full Audi Q5 data →
1,784 cars in the data
Mercedes-Benz E 300 e 4MATIC
5.4×the official figure
Official
1.2
Real world
6.6
0510 L/100 km
Full Mercedes-Benz E 300 e 4MATIC data →
Audi Q5Mercedes-Benz E 300 e 4MATIC
Real fuel use (L/100 km)6.86.6
Official fuel use (L/100 km)1.61.2
Gap vs official4.1×5.4×
Distance with engine off27%24%
Real CO2 from fuel (g/km)158153
Official electric range (km)5978
Average kerb weight (kg)2,1672,157
Cars in the data5151,784
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 E 300 e 4MATIC comes out ahead for the average owner. Your own result depends mostly on how often you charge. Owners drive the Audi Q5 27% of the time with the engine off, and the Mercedes-Benz E 300 e 4MATIC 24%. Run the calculator with your own driving.

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