The 2021 GMC Terrain is an exciting contender in the mid-size crossover segment. It uses the same platform as the Chevrolet Equinox and shares a general aesthetic with both the Acadia and the latest Chevrolet Malibu, though its unique styling helps to set it apart. The Terrain's rocker panels are integrated into the doors, narrowing the area over which a passenger must step. The body is stiffened with single-piece side stampings plus high-strength steel in critical areas. The Terrain is powered by a 1.5L turbocharged 4-cylinder engine that delivers 170 horsepower with an impressive 30 mpg on the highway. A 9-speed automatic transmission is standard for all trims. Front-wheel drive is the standard drivetrains, but all-wheel drive is available. Storage areas are everywhere in the cabin, including an oversized glovebox, an expanded center console with pass-through storage underneath large enough for a laptop computer. The rear seats feature MultiFlex, which allows the seats to move back and forth a total of eight inches for the best rear legroom in the segment. Standard equipment on base SL includes Bluetooth, a rearview camera, 17-inch painted aluminum wheels, StabiliTrak stability control, traction control, 4-wheel anti-lock brakes, six air bags, an anti-theft system, a 7-inch touchscreen display, and integrated navigation. Power windows, door locks, remote keyless entry, a tilt and telescoping steering wheel, as well as power mirrors and automatic headlamps round out the generous standards list. The upscaled SLT trim includes luggage rails, a 7-speaker stereo system, heated power front seats, a leather-wrapped steering wheel and remote start standard. The Terrain Denali is immediately recognizable by its unique wheels, chrome grill, satin chrome accents and unique headlight and tail light design. Inside, the Denali comes with black leather seating surfaces with contrasting stitching, a soft touch instrument panel with French stitching, smoked mahogany wood trim and 8-way power adjustable front seats. Safety equipment across all trims includes, an active lane departure system, forward collision mitigation, pedestrian detection, while the Denali trim also adds front and rear parking sensors, a blind spot warning system and rear collision warning.