2007 GMC Sierra Classic 15 Hybrid
17MPG
Combined
2
Trims
2007
Updated February 27, 2026
Get the full picture on the 2007 GMC Sierra Classic 15 Hybrid. As a Truck, it achieves 16–17 combined MPG depending on trim and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.
2007 GMC Sierra Classic 15 Hybrid Specifications
| Spec | Value |
|---|---|
| Combined MPG | 16–17 combined MPG depending on trim |
| City MPG | 16 |
| Highway MPG | 19 |
| Body Style | Truck |
| Fuel Type | Regular |
| Drive | RWD |
| Available Trims | 2 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Auto | 16/19/17 | 5.3L 8cyl | Automatic 4-spd |
| Auto | 15/18/16 | 5.3L 8cyl | Automatic 4-spd |
Annual Fuel Cost
Based on EPA estimates, the 2007 GMC Sierra Classic 15 Hybrid costs approximately $2,675 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
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