Since its market debut in 2010, the GMC Terrain has undergone platform updates, transitioning from the Theta platform in the first generation to the D2XX platform beginning in 2018. Front-engine configuration of this vehicle includes the choice between front-wheel and all-wheel drive to expand its functionality. Two engine options are available with the GMC Terrain through its choices between a four-cylinder engine and a V6 setup with 20 mpg city and 25 mpg highway fuel efficiency. GMC Terrain provides excellent cabin comfort through its dimensions which extend to 187.8 inches in length and 72.8 inches in width and its height reaching above 66.3 inches with a 112.5-inch wheelbase. The transmission design of this vehicle enables seamless gear shifting which improves its remarkable drive performance. The Terrain operates a six-speed automatic transmission system which enhances both its performance and fuel efficiency in different driving conditions. GMC Terrain features touchscreens inside its cabin which enhance driver visibility by increasing the overall driving experience. Customers of the GMC Terrain can select from four different trim levels: SL, SLE, SLT and Denali which provide ranges of practical to premium features.