GMC Sierra 2500HD
The Sierra HD benefits from the same type of enhancements as the Silverado HD. The 6.6-litre Duramax turbo-diesel engine gets a boost to 470 horsepower, while the 401-horsepower 6.6-litre gasoline V8 is now mated to a 10-speed Allison automatic transmission. The cabin has also been revised for 2024, with the dashboard now incorporating a 13.4-inch touchscreen. The new Sierra HD AT4X model provides increased off-road capability with DSSV shocks from acclaimed Canadian company Multimatic.
Detailed ratings
| The Car Guide rating | 69% |
|---|---|
| Fuel economy | 5/10 |
| Reliability | 5/10 |
| Safety | 8/10 |
| Infotainment | 7/10 |
| Driving | 7/10 |
| Overall | 7/10 |
What's new in 2024
Exterior and interior aesthetic redesign, more powerful diesel engine, 10-speed gearbox for the gasoline engine, new AT4X trim.
Pros
- High-performance powertrains
- More comfortable and more chic interior
- Excellent docile tug on the road
Cons
- Gluttonous gasoline V8
- Price that climbs quickly with relevant options
- Lower towing capacity than rivals
Recalls
none