2026 rankings
Least Fuel-Efficient 2026 Vehicles
The thirstiest 2026 models by annual fuel cost.
Fuel costs assume 15,000 miles a year at $3.10/gal regular, $3.95/gal premium and 18¢/kWh. Each model is shown in its most efficient configuration.
Top 15
Annual fuel cost (lower is better)Full list
| # | Model | Class | Type | Combined | Range | Fuel / yr |
|---|---|---|---|---|---|---|
| 1 | Hyundai Nexo | Small SUV | Fuel cell | 68 MPGe | 442 mi | $7,941 |
| 2 | Toyota Mirai | Compact Car | Fuel cell | 72 MPGe | 402 mi | $7,500 |
| 3 | Ferrari Purosangue | Compact Car | Gas | 12 MPG | — | $4,938 |
| 4 | Rolls-Royce Phantom | Large Car | Gas | 14 MPG | — | $4,232 |
| 5 | Rolls-Royce Ghost | Large Car | Gas | 14 MPG | — | $4,232 |
| 6 | Rolls-Royce Cullinan | Midsize & Large SUV | Gas | 14 MPG | — | $4,232 |
| 7 | Ferrari 12Cilindri | Two-Seater | Gas | 14 MPG | — | $4,232 |
| 8 | Mercedes-Benz S-Class | Large Car | Gas | 15 MPG | — | $3,950 |
| 9 | Mercedes-Benz SL-Class | Subcompact Car | Gas | 16 MPG | — | $3,703 |
| 10 | Aston Martin Vanquish | Two-Seater | Gas | 16 MPG | — | $3,703 |
| 11 | Bentley Bentayga | Midsize & Large SUV | Gas | 16 MPG | — | $3,703 |
| 12 | Audi RS Hybrid | Midsize Car | Hybrid | 16 MPG | — | $3,703 |
| 13 | Audi RS Q8 | Midsize & Large SUV | Hybrid | 16 MPG | — | $3,703 |
| 14 | Audi SQ7 | Midsize & Large SUV | Gas | 16 MPG | — | $3,703 |
| 15 | Audi SQ8 | Midsize & Large SUV | Gas | 16 MPG | — | $3,703 |
| 16 | Aston Martin DBX 727 | Midsize & Large SUV | Gas | 16 MPG | — | $3,703 |
| 17 | Cadillac Escalade | Midsize & Large SUV | Gas | 17 MPG | — | $3,485 |
| 18 | Lexus GX | Midsize & Large SUV | Gas | 17 MPG | — | $3,485 |
| 19 | Mercedes-Benz AMG GT | Two-Seater | Gas | 17 MPG | — | $3,485 |
| 20 | Aston Martin DBX 707 | Midsize & Large SUV | Gas | 17 MPG | — | $3,485 |
| 21 | Aston Martin DB12 V8 | Subcompact Car | Gas | 17 MPG | — | $3,485 |
| 22 | Ferrari F80 | Two-Seater | Hybrid | 17 MPG | — | $3,485 |
| 23 | Aston Martin DB12 S | Subcompact Car | Gas | 17 MPG | — | $3,485 |
| 24 | Aston Martin Valhalla | Two-Seater | Plug-in hybrid | 32 MPGe + 16 MPG | 280 mi | $3,300 |
| 25 | Audi S8 Hybrid | Large Car | Hybrid | 18 MPG | — | $3,292 |
| 26 | Mercedes-Benz G-Class Hybrid | Midsize & Large SUV | Hybrid | 18 MPG | — | $3,292 |
| 27 | Nissan Armada | Midsize & Large SUV | Gas | 18 MPG | — | $3,292 |
| 28 | Aston Martin Vantage | Two-Seater | Gas | 18 MPG | — | $3,292 |
| 29 | Infiniti QX80 | Midsize & Large SUV | Gas | 18 MPG | — | $3,292 |
| 30 | Lexus LC | Subcompact Car | Gas | 18 MPG | — | $3,292 |