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)
  1. 1Toyota Mirai67 MPGe $8,060
  2. 2Honda Clarity68 MPGe $7,941
  3. 3Bugatti Chiron11 MPG $5,386
  4. 4Roush Performance F15012 MPG $4,938
  5. 5Lamborghini Aventador12 MPG $4,938
  6. 6Mercedes-Benz G-Class13 MPG $4,558
  7. 7Ferrari 812 Superfast13 MPG $4,558
  8. 8Koenigsegg Agera RS13 MPG $4,558
  9. 9Pagani Huayra13 MPG $4,558
  10. 10Rolls-Royce Phantom14 MPG $4,232
  11. 11Ford GT14 MPG $4,232
  12. 12Rolls-Royce Ghost14 MPG $4,232
  13. 13Bentley Continental Supersports Convertible14 MPG $4,232
  14. 14Bentley Mulsanne14 MPG $4,232
  15. 15Bentley Continental GT Convertible14 MPG $4,232

Full list

#Model ClassType Combined Range Fuel / yr
1Toyota Mirai Subcompact CarFuel cell 67 MPGe 312 mi $8,060
2Honda Clarity Midsize CarFuel cell 68 MPGe 366 mi $7,941
3Bugatti Chiron Two-SeaterGas 11 MPG — $5,386
4Roush Performance F150 Full-Size PickupGas 12 MPG — $4,938
5Lamborghini Aventador Two-SeaterGas 12 MPG — $4,938
6Mercedes-Benz G-Class Midsize & Large SUVGas 13 MPG — $4,558
7Ferrari 812 Superfast Two-SeaterGas 13 MPG — $4,558
8Koenigsegg Agera RS Two-SeaterGas 13 MPG — $4,558
9Pagani Huayra Two-SeaterGas 13 MPG — $4,558
10Rolls-Royce Phantom Large CarGas 14 MPG — $4,232
11Ford GT Two-SeaterGas 14 MPG — $4,232
12Rolls-Royce Ghost Large CarGas 14 MPG — $4,232
13Bentley Continental Supersports Convertible Subcompact CarGas 14 MPG — $4,232
14Bentley Mulsanne Midsize CarGas 14 MPG — $4,232
15Bentley Continental GT Convertible Subcompact CarGas 14 MPG — $4,232
16Rolls-Royce Wraith Midsize CarGas 14 MPG — $4,232
17Rolls-Royce Dawn Compact CarGas 14 MPG — $4,232
18Lexus LX Midsize & Large SUVGas 15 MPG — $3,950
19Bentley Bentayga Midsize & Large SUVGas 15 MPG — $3,950
20Aston Martin Vanquish Subcompact CarGas 16 MPG — $3,703
21Lexus GX Midsize & Large SUVGas 16 MPG — $3,703
22Maserati GranTurismo Subcompact CarGas 16 MPG — $3,703
23Bentley Flying Spur Midsize CarGas 16 MPG — $3,703
24Infiniti QX80 Midsize & Large SUVGas 16 MPG — $3,703
25Lamborghini Huracan Two-SeaterGas 16 MPG — $3,703
26Maserati Levante Midsize & Large SUVGas 16 MPG — $3,703
27Cadillac Escalade Midsize & Large SUVGas 17 MPG — $3,485
28Aston Martin Rapide Subcompact CarGas 17 MPG — $3,485
29Audi RS 7 Midsize CarGas 17 MPG — $3,485
30Ferrari GTC4Lusso Subcompact CarGas 17 MPG — $3,485

More 2018 rankings

2018 class rankings

This ranking in other years