The GMC Terrain has a comfortable interior and easy-to-use technology features. The 2024 GMC Terrain is a compact SUV with seating for five and standard or optional all-wheel drive, depending on trim. It’s a worthy choice if you like the muscular exterior design and classy, understated looks.All 2024 GMC Terrain trims use a 1.5L turbocharged four-cylinder engine that makes 175 horsepower and 203 lb-ft of torque, mated to a nine-speed automatic transmission. The base SLE comes in FWD or AWD.