What car options for commuter in 9-12k range?

I currently own a ford fusion valued at around 12-16k, depending upon whether i trade in or do private party. I really like it for the most part, but the mileage is awful (6 cylinder AWD). It's rated at 24 highway but even with most of my driving being highway, i get closer to 21-22.

I'm considering trading down/laterally into something with better mileage. Maybe in the 35+ highway area. I'd prefer not to go with any models older than 2010, as my goal is to stick w. My car until i pay off my student loans ~3 years from now. Anyone have any good suggestions for sedans in that price range? I'm considering picking up a consumer reports subscription but thought i might see if anyone knows any good options off the cuff.

You will always lose money when you trade through a dealer, typically between $3,000 and $5,000 at least. That's true even if you trade down far enough to leave with cash in your hand from the dealer when the deal is done.

Before doing anything, consider how long it is going to take to recoup your losses in lower fuel costs. Unless you are putting a lot of miles on your current ride, you might be shocked to learn now long it will take to actually save any real dollars.