- Gas guzzlers
- MY2003
Worst Gas Mileage Vehicles of 2003
The thirstiest 2003 vehicle is the Ferrari Enzo Ferrari (6.0 L · RWD) at 8 MPG combined, 10 MPG below the median vehicle (18 MPG) among the 272 vehicles ranked. The Ferrari Enzo Ferrari costs about $10,040 a year to fuel, $5,810 more than the median vehicle ($4,230).
The top 10 run from 8 MPG to 12 MPG. Each model is listed once, with its best qualifying configuration named in the row; models with the same displayed value share a rank.
Lowest combined
8MPG
Ferrari Enzo Ferrari
Median model
18MPG
272 models
Top-10 median
11MPG
Models ranked
272
one row per model
Full ranking
Showing the top 50 of 272 models. Every column is sortable.
| 1 |  | 8 | 7 | 12 | 6.0 | $10,040 | −10 |
| 2 |  | 10 | 8 | 12 | 6.0 | $8,040 | −8 |
| 3 |  | 11 | 9 | 15 | 5.9 | $7,310 | −7 |
| 3 |  | 11 | 9 | 16 | 5.9 | $7,310 | −7 |
| 3 |  | 11 | 9 | 13 | 6.8 | $7,310 | −7 |
| 3 |  | 11 | 10 | 15 | 3.6 | $7,310 | −7 |
| 3 |  | 11 | 9 | 14 | 5.5 | $7,310 | −7 |
| 3 |  | 11 | 9 | 15 | 5.7 | $7,310 | −7 |
| 9 |  | 12 | 10 | 17 | 5.9 | $6,700 | −6 |
| 9 |  | 12 | 10 | 15 | 6.8 | $6,700 | −6 |
| 9 |  | 12 | 10 | 15 | 6.8 | $6,700 | −6 |
| 9 |  | 12 | 11 | 14 | 4.6 | $6,700 | −6 |
| 9 |  | 12 | 10 | 15 | 4.2 | $6,700 | −6 |
| 9 |  | 12 | 10 | 15 | 4.2 | $6,700 | −6 |
| 9 |  | 12 | 11 | 13 | 5.0 | $6,700 | −6 |
| 16 |  | 13 | 11 | 18 | 5.9 | $6,180 | −5 |
| 16 |  | 13 | 11 | 15 | 5.4 | $6,180 | −5 |
| 16 |  | 13 | 11 | 16 | 4.4 | $6,180 | −5 |
| 16 |  | 13 | 11 | 16 | 5.4 | $6,180 | −5 |
| 16 |  | 13 | 11 | 15 | 5.4 | $6,180 | −5 |
| 16 |  | 13 | 11 | 15 | 6.0 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 5.3 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 5.3 | $5,030 | −5 |
| 16 |  | 13 | 12 | 15 | 6.0 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 5.3 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 5.3 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 5.3 | $5,030 | −5 |
| 16 |  | 13 | 11 | 16 | 5.9 | $5,030 | −5 |
| 16 |  | 13 | 12 | 17 | 5.9 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 5.9 | $5,030 | −5 |
| 16 |  | 13 | 12 | 13 | 3.9 | $5,030 | −5 |
| 16 |  | 13 | 12 | 15 | 5.4 | $5,030 | −5 |
| 16 | | 13 | 12 | 15 | 5.4 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 5.3 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 5.3 | $5,030 | −5 |
| 16 |  | 13 | 11 | 15 | 6.0 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 5.3 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 4.7 | $5,030 | −5 |
| 16 |  | 13 | 12 | 16 | 4.7 | $5,030 | −5 |
| 40 |  | 14 | 13 | 17 | 4.4 | $5,740 | −4 |
| 40 |  | 14 | 11 | 20 | 8.3 | $5,740 | −4 |
| 40 |  | 14 | 12 | 17 | 5.5 | $5,740 | −4 |
| 40 |  | 14 | 13 | 16 | 5.0 | $5,740 | −4 |
| 40 |  | 14 | 12 | 17 | 5.5 | $5,740 | −4 |
| 40 |  | 14 | 12 | 18 | 5.5 | $5,740 | −4 |
| 40 |  | 14 | 13 | 16 | 3.3 | $5,740 | −4 |
| 40 | | 14 | 12 | 18 | 4.6 | $4,670 | −4 |
| 40 |  | 14 | 12 | 16 | 4.3 | $4,670 | −4 |
| 40 |  | 14 | 12 | 16 | 4.3 | $4,670 | −4 |
| 40 |  | 14 | 12 | 17 | 4.3 | $4,670 | −4 |
How this list is built
Every line below is read from the list definition that produced the table.
- Classes: every EPA class except special-purpose vehicles.
- Powertrains: Gas, Hybrid, Diesel.
- Ranked by EPA combined MPG, lowest first.
- One row per model (make and model): the configuration that ranks best in this list is shown, with its trim, engine and drive named in the row.
- Ties are decided on the displayed value (whole MPG or miles, kWh per 100 miles to one decimal, cost rounded to $10): tied models share a rank, then are ordered by a tie-breaker and by name.
- Special-purpose vehicles, such as heavy-duty variants, are excluded.
- Electric vehicles are ranked separately (see the EV rankings): gas, hybrid and diesel MPG is never mixed with MPGe.
- Annual cost assumes 15,000 miles a year at the EPA rating and the dated national fuel prices stamped below; it is rounded to $10 and all differences use the rounded values.
- Model years MY2000 to MY2027; a year is listed only when at least 10 models qualify.
Data and period
- EPA ratings: fueleconomy.gov file of Sep 29, 2026
- Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal); residential electricity, U.S. average, Jul 2026 (18.3¢/kWh)
- 15,000 miles a year, 55% city and 45% highway
Frequently asked questions
Which 2003 vehicle has the worst gas mileage?
The thirstiest 2003 vehicle is the Ferrari Enzo Ferrari (6.0 L · RWD) at 8 MPG combined, 10 MPG below the median vehicle (18 MPG) among the 272 vehicles ranked. The Ferrari Enzo Ferrari costs about $10,040 a year to fuel, $5,810 more than the median vehicle ($4,230).
How much does the Ferrari Enzo Ferrari cost to fuel per year?
About $10,040 a year at 15,000 miles a year, using the prices stamped at the bottom of this page. The median vehicle in this list costs $4,230 a year.
How many vehicles are ranked for 2003?
272 models qualify, one row each. The median is 18 MPG, and the top 10 run from 8 MPG to 12 MPG.
How are ties, trims and drivetrains handled?
Each model appears once, with the configuration that ranks best in this list; its trim, engine and drive are named in the row. Models with the same displayed value share a rank (1, 2, 2, 4) and are then ordered by a tie-breaker and by name. See the methodology.
Are electric cars and plug-in hybrids included?
Not in this list. MPG rankings cover gas, hybrid and diesel models only. Electric cars are ranked in EV range and EV efficiency, and plug-in hybrids in electric range.
What does combined MPG mean?
EPA's combined rating blends 55% city and 45% highway driving. It comes from standardized laboratory tests, so your results will differ with driving style, weather and load. See the methodology.