Audi A7 50 TFSI e vs Mercedes-Benz E 300 e: real-world fuel use
In real life the Mercedes-Benz E 300 e uses 0.7 L/100 km less fuel than the Audi A7 50 TFSI e — about £153 a year at 15,000 km and £1.40/L.
445 cars in the data
Audi A7 50 TFSI e5.0×the official figure
Official
1.4
Real world
7.3
0510 L/100 km
9,804 cars in the data
Mercedes-Benz E 300 e5.9×the official figure
Official
1.1
Real world
6.5
0510 L/100 km
| Audi A7 50 TFSI e | Mercedes-Benz E 300 e | |
|---|---|---|
| Real fuel use (L/100 km) | 7.3 | 6.5 |
| Official fuel use (L/100 km) | 1.4 | 1.1 |
| Gap vs official | 5.0× | 5.9× |
| Distance with engine off | 24% | 23% |
| Real CO2 from fuel (g/km) | 168 | 151 |
| Official electric range (km) | 72 | 83 |
| Average kerb weight (kg) | 2,140 | 2,144 |
| Cars in the data | 445 | 9,804 |
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 comes out ahead for the average owner. Your own result depends mostly on how often you charge. Owners drive the Audi A7 50 TFSI e 24% of the time with the engine off, and the Mercedes-Benz E 300 e 23%. Run the calculator with your own driving.