- Newest year: 2007
- Gas
- Minivans
2005-2007 Buick Terraza MPG & Fuel Cost
3 model years · 17–19 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 5 of 10 minivan configurations, MY2007. Ranked against all rated configurations, not sales-weighted.
2005-2007 Buick Terraza at a glance
The 2005-2007 Buick Terraza covers 3 model years in the EPA database (7 configurations in all), rated 17–19 MPG combined. The newest model year, 2007, costs about $3,440 a year to fuel for its most efficient version, the Terraza 3.9L 6-cyl FWD (19 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2006 and 2007. The best combined rating in the generation, 19 MPG, was reached in 2006 and 2007.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2005-2007 Buick Terraza by model year
What the 2007 Terraza 3.9L 6-cyl FWD costs to drive
Per month
$287
$3,440 a year ÷ 12
Per 25 miles
$5.73
Per 100 miles
$22.93
Five years
$17,200
5 × the yearly cost, prices held at today's level
vs the minivan median
$190less a year
Class median $3,630 a year, MY2007
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2007 Buick Terraza MPG
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2006: The most efficient configuration stays at 19 MPG. Its annual cost stays at $3,440.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Terraza 3.9L 6-cyl FWD Automatic 4-spd (Most efficient) | 3.9L 6-cyl | FWD | 16 | 23 | 19 | $3,440 |
| Terraza 3.9L 6-cyl FWD Automatic 4-spd | 3.9L 6-cyl | FWD | 16 | 23 | 19 | $3,440 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2006 Buick Terraza MPG
17–19 MPG · $3,440–$3,840/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2005: The most efficient configuration moves from 18 to 19 MPG, up 1. Its annual cost goes from $3,630 to $3,440, $190 less.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Terraza 3.5L 6-cyl FWD (Most efficient) | 3.5L 6-cyl | FWD | 16 | 23 | 19 | $3,440 |
| Terraza 3.9L 6-cyl | 3.9L 6-cyl | FWD | 16 | 23 | 19 | $3,440 |
| Terraza 3.5L 6-cyl 4WD | 3.5L 6-cyl | 4WD | 15 | 21 | 17 | $3,840 |
2005 Buick Terraza MPG
17–18 MPG · $3,630–$3,840/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Terraza 3.5L 6-cyl FWD (Most efficient) | 3.5L 6-cyl | FWD | 16 | 23 | 18 | $3,630 |
| Terraza 3.5L 6-cyl 4WD | 3.5L 6-cyl | 4WD | 15 | 21 | 17 | $3,840 |
Fuel cost by state
Yearly cost of the Terraza 3.9L 6-cyl FWD: $4,680 in California and $3,000 in Texas, a $1,680 difference.
- California $4,680
- Washington $4,330
- New York $3,440
- Florida $3,250
- Texas $3,000
Similar cars
Closest combined MPG among MY2007 minivan models.
Generations
- 2005-2007 (2005)
- 2008
Frequently asked questions
What gas mileage does the 2005-2007 Buick Terraza get?
EPA rates the 2005-2007 Buick Terraza at 17–19 MPG combined across 7 configurations and 3 model years. The most efficient version, the 2007 Terraza 3.9L 6-cyl FWD, is rated 19 MPG (16 city, 23 highway).
Which years had the best MPG in the 2005-2007 Buick Terraza?
The Terraza 3.9L 6-cyl FWD reached the generation's best combined rating, 19 MPG, in 2006 and 2007. The lowest top rating, 18 MPG, was in 2005.
Did EPA ratings change during the 2005-2007 Buick Terraza?
Yes. Ratings changed in 2006 and 2007.
How much does it cost to fuel a 2007 Buick Terraza per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the Terraza 3.9L 6-cyl FWD costs about $3,440 a year. Across all 2 configurations the cost runs $3,440 a year.
How much does it cost to drive a 2007 Buick Terraza 100 miles?
About $22.93 per 100 miles for the Terraza 3.9L 6-cyl FWD at regular gasoline $4.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.
Is the 2007 Buick Terraza more efficient in the city or on the highway?
The Terraza 3.9L 6-cyl FWD is rated 16 city and 23 highway MPG, so it is more efficient on the highway, by 7 MPG.
How does the 2007 Buick Terraza compare with other minivan configurations?
The Terraza 3.9L 6-cyl FWD costs about $3,440 a year to fuel, $190 less than the class median of $3,630, and less than 5 of 10 minivan configurations. The comparison covers all 23 rated minivan configurations for MY2007, not weighted by sales.
Is the 2007 Buick Terraza different from the 2006 model?
The most efficient configuration stays at 19 MPG. Its annual cost stays at $3,440. EPA lists 2 configurations for 2007 against 3 configurations for 2006. See the 2006 Buick Terraza for that year.