The 2026 GMC Terrain AT4 is All About Grit
GMC just added the AT4 trim to the Terrain SUV for 2026. As with all AT4 models, the rugged look and go-anywhere agility required by an off-road-capable machine have been long-awaited and welcomed not only by our customers but also by the automotive press. MotorTrend received one for a review recently, which they say is…