Clean CARFAX. Atlantis Blue Metallic 2013 GMC Terrain SLT-1 FWD 6-Speed Automatic 2.4L 4-Cylinder SIDI DOHC VVTRecent Arrival! 22/32 City/Highway MPGAwards:* 2013 IIHS Top Safety PickStop by for a Test Drive. Come and see the Ourisman difference! Buy from the Premier Dealer in the DC Metro area. Ourisman... Loaner Cars with major maintenance and a Car Wash with every service!! Used Cars under $10,000. Used Cars Under $10,000.Reviews:* If youâre looking for something akin to a Ford Escape or Honda CR-V, but you donât like futuristic styling or 4-cylinder powertrains, the GMC Terrain for 2013 may very well be the answer. Its squared-off edges and flared wheel openings say GMC Truck loud and clear. Source: KBB.com* Premium look inside and out; quiet cabin with lots of storage bins; spacious and adjustable backseat; comfortable highway ride. Source: Edmunds