We've driven our new Terrain V6 awd a little over a 1,000 miles. The first 100 miles of it was in the Colorado mountains, the rest on interstate 80 coming back to Iowa. Overall, we averaged 23.2mpg. I'm pretty pumped about that mileage on a brand new car/engine. It's a very comfortable suv with a minimum amount of road/outside noise. So far, we luv it!!!!