Least fuel-efficient small cars of 2015
Among 82 small cars from 2015 in the database (one per model family), the 2015 Rolls-Royce Phantom Coupe is the least fuel-efficient at 16.8 l/100km, against a class average of 10.1 l/100km. The spread from best to worst is 4.7–16.8 l/100km. Electric vehicles are ranked separately by range.
Ranked82one per model family
Average10.1 l/100km
Leader2015 Rolls-Royce Phantom Coupe
Top 10
Full ranking
| # | Vehicle | Combined | vs avg | CO2 | Weight | Recalls | NCAP |
|---|---|---|---|---|---|---|---|
| 1 | 2015 Rolls-Royce Phantom Coupe | 16.8 l/100km | +66% | 396.4 g/km | 2,629 kg | — | — |
| 2 | 2015 Aston Martin DB9 | 15.7 l/100km | +55% | 362.9 g/km | 1,856 kg | 2 | — |
| 3 | 2015 Bentley Continental GT | 15.7 l/100km | +55% | 360.4 g/km | 2,494.8 kg | — | — |
| 4 | 2015 Bentley Continental GT Convertible | 15.7 l/100km | +55% | 375.3 g/km | 2,475 kg | — | — |
| 5 | 2015 Maserati GranTurismo Convertible | 15.7 l/100km | +55% | 358.5 g/km | 2,008.1 kg | — | — |
| 6 | 2015 Aston Martin Vanquish | 14.7 l/100km | +45% | 344.2 g/km | 1,844 kg | 1 | — |
| 7 | 2015 BMW M6 Convertible | 14.7 l/100km | +45% | 343.6 g/km | 2,045.2 kg | — | — |
| 8 | 2015 Chevrolet Camaro | 14.7 l/100km | +45% | 348.6 g/km | 1,997 kg | 2 | 5 |
| 9 | 2015 Aston Martin Rapide S | 13.8 l/100km | +37% | 331.2 g/km | 1,990 kg | — | — |
| 10 | 2015 Jaguar XK Convertible | 13.8 l/100km | +37% | 320 g/km | 1,948.6 kg | — | — |
| 11 | 2015 BMW 650i xDrive Convertible | 12.4 l/100km | +23% | 296.4 g/km | 2,290.6 kg | — | — |
| 12 | 2015 BMW Alpina B6 Gran Coupe xDrive | 12.4 l/100km | +23% | 296.4 g/km | 2,290.6 kg | — | — |
| 13 | 2015 BMW M3 | 12.4 l/100km | +23% | 285.2 g/km | 1,606 kg | 3 | — |
| 14 | 2015 BMW M4 Convertible | 12.4 l/100km | +23% | 285.2 g/km | 1,601 kg | — | — |
| 15 | 2015 Ferrari California T | 12.4 l/100km | +23% | 297.6 g/km | 1,730 kg | 3 | — |
| 16 | 2015 Ford Mustang | 12.4 l/100km | +23% | 292 g/km | 1,598 kg | 11 | — |
| 17 | 2015 Hyundai Genesis Coupe | 12.4 l/100km | +23% | 285.8 g/km | 1,646.1 kg | 3 | — |
| 18 | 2015 Infiniti Q60 Convertible | 12.4 l/100km | +23% | 288.3 g/km | 1,852 kg | — | — |
| 19 | 2015 Lexus RC F | 12.4 l/100km | +23% | 288.9 g/km | 1,795 kg | 1 | — |
| 20 | 2015 Mitsubishi Lancer Evolution | 12.4 l/100km | +23% | 292 g/km | 1,662 kg | 2 | — |
| 21 | 2015 Nissan GT-R | 12.4 l/100km | +23% | 293.3 g/km | 1,738 kg | 1 | — |
| 22 | 2015 Audi S4 | 11.8 l/100km | +17% | 272.8 g/km | 1,750 kg | 1 | 5 |
| 23 | 2015 Audi S5 | 11.8 l/100km | +17% | 272.8 g/km | 1,750 kg | — | — |
| 24 | 2015 Mercedes-Benz AMG C63 | 11.8 l/100km | +17% | 274 g/km | 1,781.7 kg | — | — |
| 25 | 2015 Porsche 911 Turbo | 11.8 l/100km | +17% | 279 g/km | 1,665 kg | — | — |
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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.
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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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