If you are getting a used car I would research Consumer Reports and other sources. Find a car that is most reliable and maintains its value well. I have made the mistake in the past of not doing this and having cars that had major problems while I was still paying on them. Also, it seemed like I had to pay the entire loan off before there was any equity in the vehicle.
Not trying to steer you to Toyota, but we bought a 4runner 3 years ago. It had 90,000 miles on it at the time. It now has 170,000 miles and still going strong (with only normal repairs like brakes, replacing the timing belt, tune ups, etc.). On top of that, we paid full price at a used dealer, got a 4 year loan with a high interest rate, and 3 years in we have several thousand dollars of equity in the vehicle.