I just purchased my Impala SS with just 33K miles on it. I have driven the car for three days and the gas mileage has been great. This car offers a smooth quiet ride. The only thing that I am kind of disappointed in is the side view mirrors, they are not extended from the car enough and makes it kinda difficult to see what is besides you in either direction. Also because of how the body it shaped, it can also be a little difficult to see what is behind you.