The Terrain straddles the small and midsized SUV categories. It has a taut yet supple and controlled ride, with responsive and secure handling. The raspy 2.4-liter four-cylinder engine averaged a respectable 21 mpg overall but is not particularly brisk. For 2013 a 3.6-liter V6 replaces the old and unimpressive 3.0-liter engine and improved acceleration. But a dithering transmission makes it feel sluggish and fuel economy averaged only 18 mpg. The interior is well finished and cabin access is easy, but wide roof pillars block the rear view. The rear seat is comfortable and roomy. Reliability has been average for the four-cylinder, and above average for the V6.