2007 GMC Sierra Classic 1500
17MPG
Combined
13
Trims
2007
Updated February 27, 2026
Looking at the 2007 GMC Sierra Classic 1500? This Truck offers 14–17 combined MPG depending on trim and comes with 13 available configurations. We break down the specs, safety data, and how it compares to the competition.
2007 GMC Sierra Classic 1500 Specifications
| Spec | Value |
|---|---|
| Combined MPG | 14–17 combined MPG depending on trim |
| City MPG | 15 |
| Highway MPG | 21 |
| Body Style | Truck |
| Fuel Type | Regular |
| Drive | RWD |
| Available Trims | 13 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Auto | 14/20/16 | 4.3L 6cyl | Automatic 4-spd |
| Man | 15/21/17 | 4.3L 6cyl | Manual 5-spd |
| Auto | 15/19/17 | 4.8L 8cyl | Automatic 4-spd |
| Auto | 14/19/16 | 5.3L 8cyl | Automatic 4-spd |
| Auto | 13/17/15 | 6.0L 8cyl | Automatic 4-spd |
| Auto | 14/19/16 | 5.3L 8cyl | Automatic 4-spd |
| Auto | 14/17/15 | 4.3L 6cyl | Automatic 4-spd |
| Man | 14/19/15 | 4.3L 6cyl | Manual 5-spd |
| Auto | 14/18/15 | 4.8L 8cyl | Automatic 4-spd |
| Auto | 13/17/15 | 5.3L 8cyl | Automatic 4-spd |
| Auto | 13/16/14 | 6.0L 8cyl | Automatic 4-spd |
| Auto | 13/17/15 | 5.3L 8cyl | Automatic 4-spd |
| Auto | 13/16/14 | 6.0L 8cyl | Automatic 4-spd |
Annual Fuel Cost
Based on EPA estimates, the 2007 GMC Sierra Classic 1500 costs approximately $3,107 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
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