Most fuel-efficient midsize cars of 2003
Among 24 midsize cars from 2003 in the database (one per model family), the 2003 Audi A6 is the most fuel-efficient at 11.2 l/100km, against a class average of 12.0 l/100km. The spread from best to worst is 11.2–14.7 l/100km. Electric vehicles are ranked separately by range.
Ranked24one per model family
Average12 l/100km
Leader2003 Audi A6
Top 10
Full ranking
| # | Vehicle | Combined | vs avg | CO2 | Weight | Recalls | NCAP |
|---|---|---|---|---|---|---|---|
| 1 | 2003 Audi A6 | 11.2 l/100km | -6% | 263 g/km | — | 7 | — |
| 2 | 2003 Buick Century | 11.2 l/100km | -6% | 263 g/km | — | 2 | — |
| 3 | 2003 Chevrolet Malibu | 11.2 l/100km | -6% | 263 g/km | — | 3 | — |
| 4 | 2003 Honda Accord | 11.2 l/100km | -6% | 263 g/km | — | 24 | — |
| 5 | 2003 Kia Optima | 11.2 l/100km | -6% | 263 g/km | — | 2 | — |
| 6 | 2003 Mitsubishi Galant | 11.2 l/100km | -6% | 263 g/km | — | 3 | — |
| 7 | 2003 Nissan Altima | 11.2 l/100km | -6% | 263 g/km | — | 10 | — |
| 8 | 2003 Nissan Maxima | 11.2 l/100km | -6% | 263 g/km | — | 4 | — |
| 9 | 2003 Toyota Camry | 11.2 l/100km | -6% | 263 g/km | — | 1 | — |
| 10 | 2003 Buick Regal | 11.8 l/100km | -1% | 276.1 g/km | — | 5 | — |
| 11 | 2003 Chevrolet Monte Carlo | 11.8 l/100km | -1% | 276.1 g/km | — | 9 | — |
| 12 | 2003 Hyundai Sonata | 11.8 l/100km | -1% | 276.1 g/km | — | 6 | — |
| 13 | 2003 Infiniti I35 | 11.8 l/100km | -1% | 276.1 g/km | — | 5 | — |
| 14 | 2003 Mercury Sable | 11.8 l/100km | -1% | 276.1 g/km | — | 4 | — |
| 15 | 2003 Pontiac Grand Prix | 11.8 l/100km | -1% | 276.1 g/km | — | 7 | — |
| 16 | 2003 Volkswagen Passat | 11.8 l/100km | -1% | 276.1 g/km | — | 7 | — |
| 17 | 2003 Cadillac CTS | 12.4 l/100km | +4% | 290.6 g/km | — | 4 | — |
| 18 | 2003 Cadillac Seville | 12.4 l/100km | +4% | 290.6 g/km | — | 1 | — |
| 19 | 2003 Saab 9-5 | 12.4 l/100km | +4% | 290.6 g/km | — | 4 | — |
| 20 | 2003 Volvo S80/S80 Executive | 12.4 l/100km | +4% | 290.6 g/km | — | 6 | — |
| 21 | 2003 Audi A8 | 13.1 l/100km | +10% | 306.8 g/km | — | 1 | — |
| 22 | 2003 Lincoln LS | 13.1 l/100km | +10% | 306.8 g/km | — | 1 | — |
| 23 | 2003 Oldsmobile Aurora | 13.1 l/100km | +10% | 306.8 g/km | — | 2 | — |
| 24 | 2003 Audi RS6 | 14.7 l/100km | +23% | 345.1 g/km | — | 2 | — |
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 recalled midsize cars of 2003 Ranking
- Most recalled midsize cars of 2001 Ranking
- Most recalled midsize cars of 2002 Ranking
- Least fuel-efficient midsize cars of 2003 Ranking
- 2005 Buick Century Car specs
- 2004 Buick Century Car specs
- 2001 Buick Century Car specs