The main thing I would say to look out for is electrical problems and maybe the AC as well. Other than that...nothing. 145k is fine for a 94. Make sure you check the maintance records 3 times over just to be sure. You can expect to get atleast 100-150k out of it as long as everything checks out and you keep up with it. $3900 isn't bad, but look at the interior leather and basic condition of the car. If your happy with it, get it.