2025 Gmc Terrain At4 Mpg. Another major new feature is the addition of the at4 model. Detailed specs and features for the 2025 gmc terrain including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.

Find price quotes, rebates, mpg ratings, pictures, and more at newcars.com. The motortrend buyer’s guide has the 2025 gmc terrain specs you need, from dimensions and cargo space to power and mpgs.