2018 rankings
Least Fuel-Efficient 2018 Vehicles
The thirstiest 2018 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 | Toyota Mirai | Subcompact Car | Fuel cell | 67 MPGe | 312 mi | $8,060 |
| 2 | Honda Clarity | Midsize Car | Fuel cell | 68 MPGe | 366 mi | $7,941 |
| 3 | Bugatti Chiron | Two-Seater | Gas | 11 MPG | — | $5,386 |
| 4 | Roush Performance F150 | Full-Size Pickup | Gas | 12 MPG | — | $4,938 |
| 5 | Lamborghini Aventador | Two-Seater | Gas | 12 MPG | — | $4,938 |
| 6 | Mercedes-Benz G-Class | Midsize & Large SUV | Gas | 13 MPG | — | $4,558 |
| 7 | Ferrari 812 Superfast | Two-Seater | Gas | 13 MPG | — | $4,558 |
| 8 | Koenigsegg Agera RS | Two-Seater | Gas | 13 MPG | — | $4,558 |
| 9 | Pagani Huayra | Two-Seater | Gas | 13 MPG | — | $4,558 |
| 10 | Rolls-Royce Phantom | Large Car | Gas | 14 MPG | — | $4,232 |
| 11 | Ford GT | Two-Seater | Gas | 14 MPG | — | $4,232 |
| 12 | Rolls-Royce Ghost | Large Car | Gas | 14 MPG | — | $4,232 |
| 13 | Bentley Continental Supersports Convertible | Subcompact Car | Gas | 14 MPG | — | $4,232 |
| 14 | Bentley Mulsanne | Midsize Car | Gas | 14 MPG | — | $4,232 |
| 15 | Bentley Continental GT Convertible | Subcompact Car | Gas | 14 MPG | — | $4,232 |
| 16 | Rolls-Royce Wraith | Midsize Car | Gas | 14 MPG | — | $4,232 |
| 17 | Rolls-Royce Dawn | Compact Car | Gas | 14 MPG | — | $4,232 |
| 18 | Lexus LX | Midsize & Large SUV | Gas | 15 MPG | — | $3,950 |
| 19 | Bentley Bentayga | Midsize & Large SUV | Gas | 15 MPG | — | $3,950 |
| 20 | Aston Martin Vanquish | Subcompact Car | Gas | 16 MPG | — | $3,703 |
| 21 | Lexus GX | Midsize & Large SUV | Gas | 16 MPG | — | $3,703 |
| 22 | Maserati GranTurismo | Subcompact Car | Gas | 16 MPG | — | $3,703 |
| 23 | Bentley Flying Spur | Midsize Car | Gas | 16 MPG | — | $3,703 |
| 24 | Infiniti QX80 | Midsize & Large SUV | Gas | 16 MPG | — | $3,703 |
| 25 | Lamborghini Huracan | Two-Seater | Gas | 16 MPG | — | $3,703 |
| 26 | Maserati Levante | Midsize & Large SUV | Gas | 16 MPG | — | $3,703 |
| 27 | Cadillac Escalade | Midsize & Large SUV | Gas | 17 MPG | — | $3,485 |
| 28 | Aston Martin Rapide | Subcompact Car | Gas | 17 MPG | — | $3,485 |
| 29 | Audi RS 7 | Midsize Car | Gas | 17 MPG | — | $3,485 |
| 30 | Ferrari GTC4Lusso | Subcompact Car | Gas | 17 MPG | — | $3,485 |