Most efficient gasoline large cars, 2026 model year
11 gasoline large cars are rated for model year 2026. Their best combined ratings run from 14 to 32 MPG, with a median of 21. Honda Accord leads at 32; Rolls-Royce Phantom is last at 14.
The leader gets 2.3 times the combined rating of the model at the bottom, a spread of 18 MPG.
The largest step between neighbouring ranks comes after Kia K5, 4th: the next model, Genesis G80, is 7 MPG lower.
On annual fuel cost under the file's assumptions, Honda Accord is lowest at $2,100 and Rolls-Royce Phantom highest at $5,850; the median is $3,550.
By make: Genesis (2), Rolls-Royce (2), Acura (1), Dodge (1), 5 more with 5 models in all.
All 11 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 | Honda Accord | Honda | 32 | $2,100 | 276 | 2 |
| 2 | Hyundai Sonata | Hyundai | 32 | $2,100 | 281 | 4 |
| 3 | Acura Integra | Acura | 32 | $2,550 | 277 | 4 |
| 4 | Kia K5 | Kia | 30 | $2,250 | 298 | 4 |
| 5 | Genesis G80 | Genesis | 23 | $3,550 | 382 | 2 |
| 6 | Genesis G90 | Genesis | 21 | $3,900 | 426 | 1 |
| 7 | Porsche Panamera | Porsche | 21 | $3,900 | 425 | 2 |
| 8 | Dodge Charger | Dodge | 20 | $3,350 | 444 | 2 |
| 9 | Mercedes-Benz S-Class | Mercedes-Benz | 15 | $5,500 | 603 | 1 |
| 10 | Rolls-Royce Ghost | Rolls-Royce | 14 | $5,850 | 609 | 3 |
| 11 | Rolls-Royce Phantom | Rolls-Royce | 14 | $5,850 | 609 | 2 |
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Head-to-head comparisons
Each model is shown with its most efficient rated version. How the figures are prepared: methods and data.