2025 Gmc Sierra 2025 Specifications And Dimensions. Regular cab, double cab, and crew cab. The motortrend buyer's guide has the 2025 gmc sierra 1500 specs you need, from dimensions and cargo space to power and mpgs.

The 2025 gmc sierra 1500 presents three main cab configurations: Detailed specs and features for the 2025 gmc sierra 1500 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.