Audi A6 Avant 55 TFSI e vs Mercedes-Benz E 300 e 4MATIC: real-world fuel use
In real life the Mercedes-Benz E 300 e 4MATIC uses 0.5 L/100 km less fuel than the Audi A6 Avant 55 TFSI e — about £111 a year at 15,000 km and £1.40/L.
4,531 cars in the data
Audi A6 Avant 55 TFSI e5.0×the official figure
Official
1.4
Real world
7.2
0510 L/100 km
1,784 cars in the data
Mercedes-Benz E 300 e 4MATIC5.4×the official figure
Official
1.2
Real world
6.6
0510 L/100 km
| Audi A6 Avant 55 TFSI e | Mercedes-Benz E 300 e 4MATIC | |
|---|---|---|
| Real fuel use (L/100 km) | 7.2 | 6.6 |
| Official fuel use (L/100 km) | 1.4 | 1.2 |
| Gap vs official | 5.0× | 5.4× |
| Distance with engine off | 25% | 24% |
| Real CO2 from fuel (g/km) | 165 | 153 |
| Official electric range (km) | 72 | 78 |
| Average kerb weight (kg) | 2,150 | 2,157 |
| Cars in the data | 4,531 | 1,784 |
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 A6 Avant 55 TFSI e 25% of the time with the engine off, and the Mercedes-Benz E 300 e 4MATIC 24%. Run the calculator with your own driving.