Least fuel-efficient midsize cars
Combined MPG from the bottom. A low figure is not automatically a bad buy — a three-quarter-ton pickup and a hatchback are not doing the same job — but it is the number that decides what a year of that job costs, which the cost column puts in dollars.
| # | Car | Type | Efficiency | EPA annual fuel |
|---|---|---|---|---|
| 1 |  BMW M Plug-in hybrid |
Plug-in hybrid | 14 mpg on gas | $5,500 |
| 2 |  Audi RS Hybrid |
Hybrid | 16 mpg | $4,800 |
| 3 |  Mercedes-Benz S-Class Plug-in hybrid |
Plug-in hybrid | 18 mpg on gas | $4,300 |
| 4 |  Bentley Flying Spur Plug-in hybrid |
Plug-in hybrid | 19 mpg on gas | $4,050 |
| 5 |  Lexus LS |
Gasoline | 21 mpg | $3,650 |
| 6 |  Audi S6 Hybrid |
Hybrid | 22 mpg | $3,500 |
| 7 |  Audi S7 Hybrid |
Hybrid | 22 mpg | $3,500 |
| 8 |  Cadillac CT5 |
Gasoline | 22 mpg | $3,500 |
| 9 |  Subaru WRX |
Gasoline | 22 mpg | $3,500 |
| 10 |  Audi A6 |
Gasoline | 23 mpg | $3,350 |
| 11 |  Audi S5 |
Gasoline | 23 mpg | $3,350 |
| 12 |  Mercedes-Benz E-Class Plug-in hybrid |
Plug-in hybrid | 24 mpg on gas | $3,200 |
| 13 | Audi A7 Hybrid |
Hybrid | 25 mpg | $3,100 |
| 14 |  BMW 5 Series Plug-in hybrid |
Plug-in hybrid | 25 mpg on gas | $3,100 |
| 15 |  Lexus ES |
Gasoline | 25 mpg | $2,500 |
| 16 | Lexus LS Hybrid |
Hybrid | 25 mpg | $3,100 |
| 17 |  Volkswagen Golf/GTI |
Gasoline | 25 mpg | $3,100 |
| 18 |  Alfa Romeo Giulia |
Gasoline | 26 mpg | $2,950 |
| 19 |  Audi A5 |
Gasoline | 26 mpg | $2,950 |
| 20 | Audi A5 Hybrid |
Hybrid | 26 mpg | $2,950 |
| 21 | Mercedes-Benz E-Class Hybrid |
Hybrid | 28 mpg | $2,750 |
| 22 |  Volvo S90 Hybrid |
Hybrid | 28 mpg | $2,750 |
| 23 | Volvo S90 Plug-in hybrid |
Plug-in hybrid | 29 mpg on gas | $2,650 |
| 24 |  Nissan Altima |
Gasoline | 30 mpg | $2,100 |
| 25 |  Subaru Legacy |
Gasoline | 30 mpg | $2,100 |
One row per nameplate, showing its best-rated version — a nameplate sold in six configurations would otherwise take six rows and push everything else off the page. Annual fuel is the EPA's own figure at 15,000 miles and its reference fuel prices; every model page recalculates it from your mileage and your prices. Where these come from.
Other rankings
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Least fuel-efficient cars, everything together.
Your car's real number
Every figure on this page is an EPA lab rating. What your car actually does depends on your roads, your right foot, and its maintenance history. Carvico calculates your true MPG from your own fill-ups — kept completely private on your iPhone and iCloud.