Oil leak, bad radiator, bad transmision, water pump went bad. All this stuff was wrong with the car when I bought it.
I love this car. It is cute and sporty. Very reliable, and it gets me where I need to go even in bad weather. It handles nicely.
I had a 1994 Grand Prix SE, bought it new. They replaced the valve covers with ones made of aluminum, not plastic to fix an oil leak. Other than a power window motor and routine maintenance, this car went 70,000 miles without a problem. I sold it then, so it probably went more. Loved it. The 3.1 engine was peppy, but once you go to a GT you will never go back. I actually think it is better on gas.