Compact cars · Electric · model year 2026
Audi RS e-tron vs Mercedes-Benz CLA-Class Electric
The Mercedes-Benz CLA-Class Electric is rated 42 MPGe higher than the Audi RS e-tron in model year 2026, 126 against 84 combined, which is 50% more distance from the same energy.
Side by side
| Measure | Audi RS e-tron | Mercedes-Benz CLA-Class Electric |
|---|---|---|
| Combined fuel economy (best version) | 84 MPGe | 126 MPGe |
| City | 85 MPG | 127 MPG |
| Highway | 82 MPG | 124 MPG |
| Annual fuel cost | $900 | $600 |
| Tailpipe CO2 | 0 g/mile | 0 g/mile |
| Lowest rated version | 84 MPGe | 109 MPGe |
| Rated versions | 1 | 3 |
| All-electric range | 278 mi | 374 mi |
| Rank in class (best combined rating) | 6th of 21 | 1st of 21 |
| Class | Compact cars | Compact cars |
| Powertrain | Electric | Electric |
Better figure in bold; each model's most efficient version.
Fuel economy and cost
Fuel bills differ by $300 a year. The Mercedes-Benz CLA-Class Electric comes to $600 and the Audi RS e-tron to $900, both at 15,000 miles a year.
Where each one ranks
Within their class the Audi RS e-tron is 6th of 21 compact cars, in the top quarter, ahead of 75% of the others. The Mercedes-Benz CLA-Class Electric is the most efficient of the 21 compact cars rated that year.
The Audi RS e-tron has 1 rated version, from 84 to 84 MPGe. The Mercedes-Benz CLA-Class Electric has 3, from 109 to 126 MPGe. For the most efficient versions, the Audi RS e-tron is rated 3 higher in the city (85 against 82), while the Mercedes-Benz CLA-Class Electric is rated 3 higher in the city (127 against 124).
The two versions closest in rating are RS e-tron GT Performance: electric motor, Automatic (A1), AWD at 84 MPGe and CLA250 Plus with EQ Tech: electric motor, Automatic (A1), RWD at 109, 25 MPGe apart.
Ratings by model year
Only model year 2026 is rated for both, so there is no trend to compare.
| Model year | Audi RS e-tron | Mercedes-Benz CLA-Class Electric | Gap |
|---|---|---|---|
| 2026 | 84 | 126 | -42 |
| 2025 | 84 | not in data | n/a |