- Newest year: 2003
- Gas
- Midsize cars
- Same as 2002
2000-2003 Pontiac Grand Prix MPG & Fuel Cost
4 model years · 19–21 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 7 of 10 midsize car configurations, MY2003. Ranked against all rated configurations, not sales-weighted.
2000-2003 Pontiac Grand Prix at a glance
The 2000-2003 Pontiac Grand Prix covers 4 model years in the EPA database (12 configurations in all), rated 19–21 MPG combined. The newest model year, 2003, costs about $3,110 a year to fuel for its most efficient version, the Grand Prix 3.1L 6-cyl FWD (21 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2001 and 2002; 2003 repeat the values of the year before.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2000-2003 Pontiac Grand Prix by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2003 | Gas | 19–21 MPG | $3,110–$4,230 | Same EPA ratings as 2002 |
| 2002 | Gas | 19–21 MPG | $3,110–$4,230 | Ratings changed |
| 2001 | Gas | 20–21 MPG | $3,110–$4,020 | Ratings changed |
| 2000 | Gas | 19–21 MPG | $3,110–$4,230 | First year |
What the 2003 Grand Prix 3.1L 6-cyl FWD costs to drive
Per month
$259
$3,110 a year ÷ 12
Per 25 miles
$5.18
Per 100 miles
$20.73
Five years
$15,550
5 × the yearly cost, prices held at today's level
vs the midsize car median
$430less a year
Class median $3,540 a year, MY2003
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2003 Pontiac Grand Prix MPG
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
EPA lists the same ratings for the 2003 Pontiac Grand Prix as for the 2002 model, so the configurations and costs are the ones in the 2002 section above.See 2002
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Grand Prix 3.1L 6-cyl (Most efficient) | 3.1L 6-cyl | FWD | 18 | 26 | 21 | $3,110 |
| Grand Prix 3.8L 6-cyl | 3.8L 6-cyl | FWD | 17 | 27 | 20 | $3,270 |
| Grand Prix 3.8L 6-cyl supercharged | 3.8L 6-cyl supercharged | FWD | 16 | 25 | 19 | $4,230 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2002 Pontiac Grand Prix MPG
19–21 MPG · $3,110–$4,230/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2001: The most efficient configuration stays at 21 MPG. Its annual cost stays at $3,110.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Grand Prix 3.1L 6-cyl (Most efficient) | 3.1L 6-cyl | FWD | 18 | 26 | 21 | $3,110 |
| Grand Prix 3.8L 6-cyl | 3.8L 6-cyl | FWD | 17 | 27 | 20 | $3,270 |
| Grand Prix 3.8L 6-cyl supercharged | 3.8L 6-cyl supercharged | FWD | 16 | 25 | 19 | $4,230 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2001 Pontiac Grand Prix MPG
20–21 MPG · $3,110–$4,020/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2000: The most efficient configuration stays at 21 MPG. Its annual cost stays at $3,110.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Grand Prix 3.1L 6-cyl (Most efficient) | 3.1L 6-cyl | FWD | 18 | 26 | 21 | $3,110 |
| Grand Prix 3.8L 6-cyl | 3.8L 6-cyl | FWD | 17 | 28 | 21 | $3,110 |
| Grand Prix 3.8L 6-cyl supercharged | 3.8L 6-cyl supercharged | FWD | 16 | 26 | 20 | $4,020 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2000 Pontiac Grand Prix MPG
19–21 MPG · $3,110–$4,230/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Grand Prix 3.1L 6-cyl (Most efficient) | 3.1L 6-cyl | FWD | 18 | 27 | 21 | $3,110 |
| Grand Prix 3.8L 6-cyl | 3.8L 6-cyl | FWD | 17 | 27 | 21 | $3,110 |
| Grand Prix 3.8L 6-cyl supercharged | 3.8L 6-cyl supercharged | FWD | 16 | 25 | 19 | $4,230 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the Grand Prix 3.1L 6-cyl FWD: $4,230 in California and $2,710 in Texas, a $1,520 difference.
- California $4,230
- Washington $3,920
- New York $3,110
- Florida $2,940
- Texas $2,710
Similar cars
Closest combined MPG among MY2003 midsize car models.
Generations
- 2000-2003 (7th gen)
- 2004-2008 (8th gen)
Frequently asked questions
What gas mileage does the 2000-2003 Pontiac Grand Prix get?
EPA rates the 2000-2003 Pontiac Grand Prix at 19–21 MPG combined across 12 configurations and 4 model years. The most efficient version, the 2003 Grand Prix 3.1L 6-cyl FWD, is rated 21 MPG (18 city, 26 highway).
Which years had the best MPG in the 2000-2003 Pontiac Grand Prix?
Every model year of the 2000-2003 Pontiac Grand Prix tops out at 21 MPG combined, so no year is better than another.
Did EPA ratings change during the 2000-2003 Pontiac Grand Prix?
Yes. Ratings changed in 2001 and 2002. In 2003 the values repeat the year before.
How much does it cost to fuel a 2003 Pontiac Grand Prix per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the Grand Prix 3.1L 6-cyl FWD costs about $3,110 a year. Across all 3 configurations the cost runs $3,110–$4,230 a year. That is a $1,120 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2003 Pontiac Grand Prix 100 miles?
About $20.73 per 100 miles for the Grand Prix 3.1L 6-cyl FWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $20.73 and $28.20 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2003 Pontiac Grand Prix more efficient in the city or on the highway?
The Grand Prix 3.1L 6-cyl FWD is rated 18 city and 26 highway MPG, so it is more efficient on the highway, by 8 MPG.
How does the 2003 Pontiac Grand Prix compare with other midsize car configurations?
The Grand Prix 3.1L 6-cyl FWD costs about $3,110 a year to fuel, $430 less than the class median of $3,540, and less than 7 of 10 midsize car configurations. The comparison covers all 90 rated midsize car configurations for MY2003, not weighted by sales.
Is the 2003 Pontiac Grand Prix different from the 2002 model?
No. EPA lists the same ratings for 2002 and 2003: 3 configurations rated 19–21 MPG combined. See the 2002 Pontiac Grand Prix for that year.