The 2010 GMC Terrain is an all-new small crossover SUV. The 2010 GMC Terrain is an eye-catching and capable crossover SUV that deserves to be mentioned in the same breath as segment stars like the RAV4 and CR-V. Quiet and attractive cabin, good ride/handling balance, roomy accommodations, impressive fuel economy. The 2010 GMC Terrain offers just about everything that shoppers in this segment are looking for, and it's one you'll definitely want purchase.