The 2027 GMC Sierra 1500 joins the redesigned Silverado with two V8s and a secret weed hide behind a screen
Because the Sierra is just a Silverado underneath, the powertrain options look the same, and each engine now sends its power to the wheels through a 10-speed automatic. However, if you’re curious about horsepower, torque, fuel economy, acceleration, or any other gory details, you’ll have to wait. According to GMC, “Additional information about each engine