Both the Terrain and the Equinox are powered by a 1.5-liter turbocharged 4-cylinder engine paired with an 8-speed automatic transmission. However, the Terrain delivers that power with a more polished driving feel, supported by available selectable drive modes including Normal, Snow, Off-Road, and Tow/Haul. The AT4 trim adds an exclusive Terrain drive mode and a lifted ride height, giving the GMC Terrain a clear edge for drivers who want more capability from their small SUV. When properly equipped, the Terrain can also tow up to 1,500 pounds with an available Trailering Package.

The Terrain's cabin is purposefully designed with passenger comfort and practical storage in mind. It seats up to five and offers a maximum cargo volume of 63.5 cubic feet with the rear seats folded. The 60/40 split-folding rear seats, a rear cargo underfloor storage compartment, and front center console passthrough storage make everyday life more convenient. Depending on the trim, seating materials range from premium cloth to perforated leather-appointed surfaces, giving buyers a clear path to a more upscale feel. The Equinox offers a comparable cabin footprint, but the Terrain's trim-specific interior options - particularly the Denali's heated and ventilated front seats and heated rear outboard seats set it apart in comfort.

The Terrain comes standard with a 15-inch diagonal Premium GMC Infotainment System touchscreen with Google built-in compatibility. That means drivers can use Google Assistant, Google Maps, and a variety of apps directly through the center display without needing to connect a phone. An 11-inch diagonal Driver Information Center rounds out the digital cockpit. The Equinox also offers a large touchscreen, but the Terrain's standard screen size and built-in Google integration give it a more connected, modern feel right out of the box.

The 2026 GMC Terrain comes with over 16 standard safety and driver assistance features. That includes Forward Collision Alert, Front Pedestrian and Bicyclist Braking, Rear Cross Traffic Braking, Blind Zone Steering Assist, IntelliBeam automatic high-beam headlamps, and an HD Rear Vision Camera. Available upgrades include HD Surround Vision and a Rear Camera Mirror. The Equinox offers many of the same core safety technologies, but the Terrain's standard feature count and available camera suite make it easier to feel confident on the road without having to upgrade to a higher trim.

The 2026 GMC Terrain is available in three distinct trims: Elevation, AT4, and Denali. The Elevation serves as a well-equipped starting point with heated front seats, a heated steering wheel, and the full infotainment setup. The AT4 targets adventure-minded drivers with all-terrain tires, a front skid plate, red recovery hooks, and that exclusive Terrain drive mode. The Denali tops the lineup with animated headlamps and taillamps, a signature Galvano chrome grille, and a more luxurious interior experience. The Equinox has its own trim structure, but it lacks the off-road-focused AT4 variant and the premium Denali tier that gives the Terrain lineup more range and personality.

The 2026 GMC Terrain is a well-rounded small SUV that offers more trim variety, a more advanced standard technology package, and a stronger off-road capability story than the Equinox. Whether you're prioritizing everyday comfort or weekend adventure, the Terrain gives you more to work with at every level.