Mercedes-Benz models ranked by fuel economy, 2026

22 Mercedes-Benz models are rated for model year 2026. Their best combined ratings run from 15 to 126, with a median of 25.5. Mercedes-Benz CLA-Class Electric leads at 126; Mercedes-Benz S-Class is last at 15.

The leader gets 8.4 times the combined rating of the model at the bottom, a spread of 111.

The largest step between neighbouring ranks comes after Mercedes-Benz G-Class Electric, 4th: the next model, Mercedes-Benz CLA-Class Hybrid, is 32 lower.

On annual fuel cost under the file's assumptions, Mercedes-Benz CLA-Class Electric is lowest at $600 and Mercedes-Benz S-Class highest at $5,500; the median is $3,225.

By vehicle class: Compact cars (4), Standard SUVs (4), Large cars (3), Midsize cars (3), 5 more with 8 models in all.

By powertrain: Hybrid (13), Electric (4), Gasoline (4), Plug-in hybrid (1).

MPGe is used for electric models: it is the electric equivalent of MPG, so the figures are comparable as energy efficiency.

Best combined rating of the most efficient Mercedes-Benz models for model year 2026.

All 22 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).

Mercedes-Benz models ranked by combined rating, model year 2026
Rank	Model	Vehicle class	Powertrain	Combined MPG	Annual fuel cost	CO2 g/mile	Versions
1	Mercedes-Benz CLA-Class Electric	Compact cars	Electric	126	$600	0	3
2	Mercedes-Benz EQS	Large cars	Electric	98	$750	0	6
3	Mercedes-Benz EQE	Midsize cars	Electric	94	$800	0	6
4	Mercedes-Benz G-Class Electric	Standard SUVs	Electric	62	$1,200	0	1
5	Mercedes-Benz CLA-Class Hybrid	Compact cars	Hybrid	30	$2,750	298	3
6	Mercedes-Benz C-Class Hybrid	Compact cars	Hybrid	29	$2,850	307	3
7	Mercedes-Benz GLA-Class Hybrid	Small SUVs	Hybrid	29	$2,850	306	3
8	Mercedes-Benz E-Class Hybrid	Midsize cars	Hybrid	28	$2,950	316	4
9	Mercedes-Benz GLB-Class Hybrid	Small SUVs	Hybrid	28	$2,950	311	3
10	Mercedes-Benz CLE-Class	Subcompact cars	Hybrid	27	$3,050	323	6
11	Mercedes-Benz GLC-Class Hybrid	Small SUVs	Hybrid	27	$3,050	323	5
12	Mercedes-Benz E-Class Plug-in hybrid	Midsize cars	Plug-in hybrid	24	$3,400	115	2
13	Mercedes-Benz CLA-Class	Compact cars	Gasoline	23	$3,550	379	1
14	Mercedes-Benz GLE-Class Hybrid	Standard SUVs	Hybrid	23	$3,550	382	9
15	Mercedes-Benz S-Class Hybrid	Large cars	Hybrid	23	$3,550	380	3
16	Mercedes-Benz AMG GT Hybrid	Station wagons	Hybrid	22	$3,750	405	3
17	Mercedes-Benz SL-Class Hybrid	Minicompact cars	Hybrid	22	$3,750	400	1
18	Mercedes-Benz GLS-Class Hybrid	Standard SUVs	Hybrid	21	$3,900	428	4
19	Mercedes-Benz G-Class Hybrid	Standard SUVs	Hybrid	18	$4,550	490	2
20	Mercedes-Benz AMG GT	Two-seaters	Gasoline	17	$4,850	512	4
21	Mercedes-Benz SL-Class	Minicompact cars	Gasoline	16	$5,150	552	3
22	Mercedes-Benz S-Class	Large cars	Gasoline	15	$5,500	603	1

Each model is shown with its most efficient rated version. How the figures are prepared: methods and data.