I would RUN from that 3.8 Grand Prix. These cars are horrible. I stopped working on my Nieces. I got fed up fixing it all the time. Rear wheel bearings, CV's at 125K, Brake calipers stick and burn the pads up on a routine basis. Throttle body passages that are too damned small and get carbon'd up and throw an engine code. My personal fav...an auto trans without a dipstick! The tranny's are leakers..and it's SEALED. You have to go to a dealer to have fluid pumped in through a special port. Are you kidding me? The 3.8's have intake manifold sealing issues. Look for a Saturn. High miles are high miles and I look for as few miles as possible. Engines don't fall apart like they used to..but alternators, water pump, brake rotors, seals, mufflers...all that stuff starts failing and eats you up $300 at a clip. People tend to forget stuff like that.