This is how what happened. It is 2001. My GTP turned 36300 miles, just 287 miles after warratny runs out and I am driving to work and the car just dies and coasts off to the side of the road. I get it towed to the nearest dealer. I will not name any names. They get the car and say a relay/computer box under the passenger seat went bad. With the cost of the tow it is almost $1500. I get the car back and there are no interior lights. I tell then that and say that was not there before and they say it si a different problem and for $90 they can diagnose the problem. I drive the car to the dealer where I bought it, talk the the service manager, and tell him the problem. He pops the hood and connects a wire the ther dealer forgot to connect when they put the relay thing in. He charged me $0. Then developed a vibration and needs hubs for $800. (Since then I have learned to change them on my own). Then one more thing happened, which I now can not remember. Then I got rid of the car.
And my sample size is small. We have I was born and raised a GM guy and the first 10 cars I bought were GM. In no particular order, including my wifes cars, we have had a Chevy Blazer, Pontiac leMans, an Olds cutlass, a chevy beretta, a lumina APV, 2 saturns (first one taken back as a lemon), 2 grand prix's, and an Olds alero. After having massive repair bills at less than 50K miles on all of them I quit buying GM. I kept the last Grand Prix because it keeps going. Now we have an Excursion with 180K, the BMW has 85K, an Audi, and the Grand Prix with 100K. I am the poster child why GM went bank rupt.