Most efficient electric compact cars, 2026 model year
7 electric compact cars are rated for model year 2026. Their best combined ratings run from 77 to 126 MPGe, with a median of 93. Mercedes-Benz CLA-Class Electric leads at 126; Rolls-Royce Spectre is last at 77.
The leader gets 1.6 times the combined rating of the model at the bottom, a spread of 49 MPGe.
The largest step between neighbouring ranks comes after BMW i5, 3rd: the next model, Porsche Taycan, is 17 MPGe lower.
On annual fuel cost under the file's assumptions, Mercedes-Benz CLA-Class Electric is lowest at $600 and Rolls-Royce Spectre highest at $1,000; the median is $800.
By make: Audi (2), BMW (2), Mercedes-Benz (1), Porsche (1), 1 more with 1 models in all.
All 7 models ranked
Annual fuel cost in the file is based on 15,000 miles a year, 55% city and 45% highway driving, and the fuel prices that fueleconomy.gov published at the time of the release (the same prices for every model year).
| Rank | Model | Make | Combined MPG | Annual fuel cost | CO2 g/mile | Versions |
|---|---|---|---|---|---|---|
| 1 | Mercedes-Benz CLA-Class Electric | Mercedes-Benz | 126 | $600 | 0 | 3 |
| 2 | BMW i4 | BMW | 118 | $650 | 0 | 7 |
| 3 | BMW i5 | BMW | 110 | $700 | 0 | 9 |
| 4 | Porsche Taycan | Porsche | 93 | $800 | 0 | 17 |
| 5 | Audi S e-tron | Audi | 90 | $850 | 0 | 2 |
| 6 | Audi RS e-tron | Audi | 84 | $900 | 0 | 1 |
| 7 | Rolls-Royce Spectre | Rolls-Royce | 77 | $1,000 | 0 | 4 |
Related rankings
- Most fuel-efficient compact cars, 2026 models (21 models)
- Most efficient electric vehicles, 2026 models (66 models)
- Most efficient gasoline compact cars, 2026 models (9 models)
- Most efficient electric small SUVs, 2026 models (24 models)
- Most efficient electric standard SUVs, 2026 models (17 models)
Head-to-head comparisons
Each model is shown with its most efficient rated version. How the figures are prepared: methods and data.