Least fuel-efficient large cars of 2018
Among 36 large cars from 2018 in the database (one per model family), the 2018 Rolls-Royce Ghost is the least fuel-efficient at 16.8 l/100km, against a class average of 11.2 l/100km. The spread from best to worst is 4.3–16.8 l/100km. Electric vehicles are ranked separately by range.
Ranked36one per model family
Average11.2 l/100km
Leader2018 Rolls-Royce Ghost
Top 10
Full ranking
| # | Vehicle | Combined | vs avg | CO2 | Weight | Recalls | NCAP |
|---|---|---|---|---|---|---|---|
| 1 | 2018 Rolls-Royce Ghost | 16.8 l/100km | +51% | 393.9 g/km | 2,520 kg | 1 | — |
| 2 | 2018 Rolls-Royce Phantom | 16.8 l/100km | +51% | 387.1 g/km | 2,694 kg | 1 | — |
| 3 | 2018 BMW M760i xDrive | 14.7 l/100km | +32% | 354.8 g/km | 2,326 kg | — | — |
| 4 | 2018 Maserati Quattroporte V8 | 13.8 l/100km | +24% | 321.2 g/km | 1,900 kg | — | — |
| 5 | 2018 Dodge Charger | 13.1 l/100km | +17% | 302 g/km | 1,934 kg | 6 | 5 |
| 6 | 2018 Genesis G80 AWD | 13.1 l/100km | +17% | 312.5 g/km | 2,126 kg | 6 | 5 |
| 7 | 2018 Genesis G90 AWD | 13.1 l/100km | +17% | 306.3 g/km | 2,229 kg | 4 | — |
| 8 | 2018 Audi A8 L | 12.4 l/100km | +11% | 289.6 g/km | 2,055 kg | — | — |
| 9 | 2018 BMW 750i xDrive | 12.4 l/100km | +11% | 287.7 g/km | 2,304.2 kg | — | — |
| 10 | 2018 BMW Alpina B7 xDrive | 12.4 l/100km | +11% | 287.7 g/km | 2,304.2 kg | — | — |
| 11 | 2018 Chrysler 300 | 12.4 l/100km | +11% | 289.6 g/km | 1,797 kg | 4 | 4 |
| 12 | 2018 Ford Taurus AWD | 12.4 l/100km | +11% | 290.2 g/km | 1,822 kg | 4 | 5 |
| 13 | 2018 Lincoln Continental AWD | 12.4 l/100km | +11% | 290.2 g/km | 1,916 kg | 2 | 5 |
| 14 | 2018 Mercedes-Benz Maybach S560 4matic | 12.4 l/100km | +11% | 282.7 g/km | 2,692.1 kg | — | — |
| 15 | 2018 Cadillac XTS AWD | 11.8 l/100km | +6% | 275.9 g/km | 2,694.3 kg | 1 | 5 |
| 16 | 2018 Jaguar Xj AWD | 11.8 l/100km | +6% | 275.9 g/km | 1,956.8 kg | — | — |
| 17 | 2018 Kia K900 | 11.8 l/100km | +6% | 278.4 g/km | 2,066 kg | 2 | — |
| 18 | 2018 Porsche Panamera Turbo ST | 11.8 l/100km | +6% | 279 g/km | 2,163.2 kg | — | — |
| 19 | 2018 Cadillac Ct6 AWD | 11.2 l/100km | 0% | 258.5 g/km | 1,936.4 kg | 2 | — |
| 20 | 2018 Jaguar Xjl | 11.2 l/100km | 0% | 259.7 g/km | 1,939.6 kg | — | — |
| 21 | 2018 Buick Regal AWD | 10.7 l/100km | -4% | 250.4 g/km | 1,936.4 kg | 3 | — |
| 22 | 2018 Chevrolet Impala | 10.7 l/100km | -4% | 251 g/km | 1,717 kg | 1 | 5 |
| 23 | 2018 BMW 340i xDrive Gran Turismo | 10.2 l/100km | -9% | 237.4 g/km | 1,977.7 kg | — | — |
| 24 | 2018 BMW 640i xDrive Gran Turismo | 10.2 l/100km | -9% | 241.1 g/km | 1,999.9 kg | — | — |
| 25 | 2018 BMW 740i xDrive | 10.2 l/100km | -9% | 237.4 g/km | 1,977.7 kg | — | — |
Related rankings
How this ranking works
Values come from FuelEconomy.gov, EPA certification data and NHTSA records shown on each vehicle's page. Only the best-placed version of each model family is listed, so one model cannot fill the list. Electric vehicles are excluded from fuel-consumption rankings and ranked by range instead.
Related calculators
Fuel economy and trip costFuel economy unit converter · Trip fuel and cost · Annual savings from better economyFuel savings and break-evenBreak-even distance for a more economical vehicle · Fuel price at which two vehicles cost the same · Running cost per 100 kmPower-to-weightPower-to-weight ratio · Torque-to-weight ratio · Power needed for a target ratioEV range and consumptionDriving range from battery and consumption · Energy consumption unit converter · Battery health and capacity loss
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