2025 Gmc Sierra 2025 Hd Mpg. It completes a quarter mile run in 14.9 seconds. Detailed specs and features for the 2025 gmc sierra 2500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.

It completes a quarter mile run in 14.9 seconds. General motors officially unveiled the fully refreshed 2025 gmc sierra hd last october, revealing an updated exterior, an overhauled interior, a new trim level lineup, and.