Least fuel-efficient large cars of 2025
Among 16 large cars from 2025 in the database (one per model family), the 2025 Rolls-Royce Ghost is the least fuel-efficient at 16.8 l/100km, against a class average of 10.9 l/100km. The spread from best to worst is 4.9–16.8 l/100km. Electric vehicles are ranked separately by range.
Ranked16one per model family
Average10.9 l/100km
Leader2025 Rolls-Royce Ghost
Top 10
Full ranking
| # | Vehicle | Combined | vs avg | CO2 | Weight | Recalls | NCAP |
|---|---|---|---|---|---|---|---|
| 1 | 2025 Rolls-Royce Ghost | 16.8 l/100km | +54% | 378.4 g/km | 2,790 kg | — | — |
| 2 | 2025 Rolls-Royce Phantom | 16.8 l/100km | +54% | 378.4 g/km | 2,790 kg | — | — |
| 3 | 2025 Audi S8 | 13.1 l/100km | +20% | 311.9 g/km | 2,505.2 kg | 1 | — |
| 4 | 2025 Porsche Panamera GTS | 13.1 l/100km | +20% | 307.6 g/km | 2,131.9 kg | — | — |
| 5 | 2025 Genesis G80 AWD | 12.4 l/100km | +14% | 294.5 g/km | 2,105.1 kg | 2 | 5 |
| 6 | 2025 BMW 760i xDrive Sedan | 11.8 l/100km | +8% | 265.3 g/km | 2,715.2 kg | — | — |
| 7 | 2025 Genesis G90 Mhev | 11.8 l/100km | +8% | 274 g/km | 2,325.1 kg | — | — |
| 8 | 2025 Audi A8 quattro | 10.7 l/100km | -2% | 257.2 g/km | 2,280.2 kg | 1 | — |
| 9 | 2025 Mercedes-Benz S580e 4matic | 10.2 l/100km | -6% | 65.9 g/km | — | — | — |
| 10 | 2025 Acura Integra | 9.8 l/100km | -10% | 230.5 g/km | 1,475.5 kg | 1 | 5 |
| 11 | 2025 BMW 750e xDrive Sedan | 9.4 l/100km | -14% | 82 g/km | 2,527.9 kg | — | — |
| 12 | 2025 BMW 740i xDrive Sedan | 8.7 l/100km | -20% | 202.6 g/km | 2,473 kg | — | — |
| 13 | 2025 Hyundai Sonata FWD | 8.7 l/100km | -20% | 206.9 g/km | 1,652.9 kg | — | 5 |
| 14 | 2025 Kia K5 | 8.7 l/100km | -20% | 205.7 g/km | 1,607.1 kg | 2 | 5 |
| 15 | 2025 Honda Accord | 7.3 l/100km | -33% | 172.1 g/km | 1,579 kg | — | — |
| 16 | 2025 Honda Civic 5Dr | 4.9 l/100km | -55% | 115.6 g/km | 1,475.1 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
Related pages
- Most fuel-efficient large cars of 2025 Ranking
- Least fuel-efficient large cars of 2026 Ranking
- Most fuel-efficient large cars of 2024 Ranking
- 2025 Rolls-Royce Ghost Extended Car specs
- 2026 Rolls-Royce Ghost Extended Car specs
- 2025 Rolls-Royce Ghost Car specs
- 2026 Rolls-Royce Ghost Car specs