STAY AWAY FROM RUST!

Other than that, get one with as many options as you can find. Sunroof, floor shift, leather, all increase desirability on a car that is fastly fading away. Look for originality and care of ownership. 4.5 engines are pretty bulletproof, but may smoke on start-up due to valve seals. I have found the alternators to be pretty weak, so check that out too. Get under it on a lift and look for RUST.