GMC SIERRA CLASSIC 2500
1999–2000 · 42 trims available
At a Glance
SIERRA CLASSIC 2500 OVERVIEW
Year Range
1999–2000
Total Configurations
42
Best MyCar Score
72.5 / 100
Trim Levels
2000 CONFIGURATIONS
Showing 2000 trims. Select a year above for full details.
Trim Guide
UNDERSTANDING SIERRA CLASSIC 2500 TRIMS
Averaged across all model years. Sorted entry-level to premium by price.
| Trim | Body | Avg MPG | Avg HP | Avg MSRP | Score |
|---|---|---|---|---|---|
| HD SLE | Truck (Extended Cab) | N/A | 255 | N/A | 73 |
| SL | Truck (Crew Cab) | N/A | 255 | N/A | 73 |
| SLE | Truck (Crew Cab) | N/A | 255 | N/A | 73 |
| HD SL | Truck (Regular Cab) | N/A | 255 | N/A | 73 |
| SLT | Truck (Crew Cab) | N/A | 255 | N/A | 73 |
| HD SLT | Truck (Regular Cab) | N/A | 255 | N/A | 73 |
| HD SLT | Truck (Extended Cab) | N/A | 255 | N/A | 73 |
| SL | Truck (Extended Cab) | N/A | 255 | N/A | 73 |
| HD SLE | Truck (Regular Cab) | N/A | 255 | N/A | 73 |
| C2500 SLT HD | Truck (Extended Cab) | N/A | 255 | N/A | 73 |
| SL | Truck (Regular Cab) | N/A | 255 | N/A | 73 |
Specs Summary
WHAT TO EXPECT FROM A SIERRA CLASSIC 2500
| Spec | Entry Level | Top Spec |
|---|---|---|
| Horsepower | 255 HP | 255 HP |
| Body Types | Truck (Crew Cab) | Truck (Crew Cab), Truck (Extended Cab), Truck (Regular Cab) |
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