Like any car check the seat bolts for rust, the pedals on these cars all seem to rust up a bit for whatever reason, and a clunk in the drivetrain...if it clunks it's a bad bushing on the diff...it's a fairly cheap fix but it could help you drive the price down...you can check the rear C pillar covers to see if they're loose at all, again another easy fix with some washers, but they tend to break off if you drive high speed with the back windows down...check the rims for scratches too, tire shops tend to gouge them due to the run-flat tires....otherwise, check it over like a normal car.
also pay attention when you shut it down, this car does rumble a bit when you shut it down, but if it's excessive the motor mounts could be bad....basically if it sounds like it's dieseling the mounts are bad.
forgot one more thing, look around the sun roof for creases, usually a sign it's been tracked and check the info panel on the dash...where it shows, oil pres. tire pres., etc... there will be a G meter...it can be cleared, but if it hasn't been cleared could be a good indication of previous owners driving habits.