When I first got the car, the only problem that was wrong were my brakes. I noticed that when I tapped on the brakes, the steering wheel would vibrate rapidly. I ended up having to replace my rotors, calipers, and pads. It cost me close to one thousand dollars.
Many of the electrical components of the car are having trouble also. My CD and cassette player are both not working, and one of my speakers in the back is out. Replace the entire system would cost less than getting original factory part for the sound system. My sunroof isn't working properly, sometimes it won't shut.
The car drives great, the interior is great. Driving is blast with this car. It's got lots of power, dependability, and stability.
I suggest that if you buy this car used, make sure you get every thing checked out before making the purchase.
I believe if you get the car in good condition, and keep up with the factory suggested maintenance the car will run for a very long time.
I also own a J30...1994, 114,500 miles. This review is spot on.