2018 All-New GMC Terrain SLT (Left) and Denali (Right) Published on January 9, 2017 in News Wire: All 6 2017 Buick Models Offer NHTSA 5-Star Overall Vehicle Score for SafetyFull resolution (3000 × 1474) 2018 All-New GMC Terrain SLT (Left) and Denali (Right). © General Motors