Most fuel-efficient large cars, 2026 model year

25 large cars are rated for model year 2026. Their best combined ratings run from 14 to 146, with a median of 28. Lucid Air leads at 146; Rolls-Royce Phantom is last at 14.

The leader gets 10.4 times the combined rating of the model at the bottom, a spread of 132.

The largest step between neighbouring ranks comes after BMW i7, 5th: the next model, Hyundai Sonata Hybrid, is 37 lower.

On annual fuel cost under the file's assumptions, Lucid Air is lowest at $500 and Rolls-Royce Phantom highest at $5,850; the median is $2,950.

By powertrain: Gasoline (11), Hybrid (8), Electric (5), Plug-in hybrid (1).

By make: BMW (3), Genesis (3), Honda (3), Mercedes-Benz (3), 9 more with 13 models in all.

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 large cars for model year 2026.

All 25 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).

Large cars ranked by combined rating, model year 2026
Rank	Model	Make	Powertrain	Combined MPG	Annual fuel cost	CO2 g/mile	Versions
1	Lucid Air	Lucid	Electric	146	$500	0	8
2	Tesla Model S	Tesla	Electric	124	$600	0	3
3	Mercedes-Benz EQS	Mercedes-Benz	Electric	98	$750	0	6
4	Dodge Charger Electric	Dodge	Electric	95	$800	0	7
5	BMW i7	BMW	Electric	88	$850	0	8
6	Hyundai Sonata Hybrid	Hyundai	Hybrid	51	$1,300	175	2
7	Honda Civic Hybrid	Honda	Hybrid	49	$1,350	181	2
8	Honda Accord Hybrid	Honda	Hybrid	48	$1,400	184	2
9	Honda Accord	Honda	Gasoline	32	$2,100	276	2
10	Hyundai Sonata	Hyundai	Gasoline	32	$2,100	281	4
11	Acura Integra	Acura	Gasoline	32	$2,550	277	4
12	Kia K5	Kia	Gasoline	30	$2,250	298	4
13	BMW 7 Series Hybrid	BMW	Hybrid	28	$2,950	317	3
14	BMW 7 Series Plug-in hybrid	BMW	Plug-in hybrid	24	$3,400	130	1
15	Genesis G80	Genesis	Gasoline	23	$3,550	382	2
16	Mercedes-Benz S-Class Hybrid	Mercedes-Benz	Hybrid	23	$3,550	380	3
17	Audi A8 Hybrid	Audi	Hybrid	22	$3,750	414	1
18	Genesis G90	Genesis	Gasoline	21	$3,900	426	1
19	Porsche Panamera	Porsche	Gasoline	21	$3,900	425	2
20	Dodge Charger	Dodge	Gasoline	20	$3,350	444	2
21	Genesis G90 Hybrid	Genesis	Hybrid	20	$4,100	441	1
22	Audi S8	Audi	Hybrid	18	$4,550	502	1
23	Mercedes-Benz S-Class	Mercedes-Benz	Gasoline	15	$5,500	603	1
24	Rolls-Royce Ghost	Rolls-Royce	Gasoline	14	$5,850	609	3
25	Rolls-Royce Phantom	Rolls-Royce	Gasoline	14	$5,850	609	2

Related rankings

Most efficient gasoline large cars, 2026 models (11 models)
Most efficient hybrid large cars, 2026 models (8 models)

Head-to-head comparisons

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