Hey guys. I'm thinking of getting rid of my 03' Grand Am and going with a Cobalt. I'm currently looking at an 06' lt 4 dr. It will be a commuter car to work driving strictly interstate. What kind of mileage can I expect from this car? It's an automatic also. Trying to decide if this is worth making the jump from the grand am to Cobalt. Also what are things to check when inspecting the car?