most reliable car ever

i was given a pontiac 6000 by my dad sort of as a joke(no offense) the clear coat was chipping off (could see it flying off as u were driving down the highway) the material on the roof came unglued and was blocking vision through the rear view but i never ever had a mechanical problem with it. i belive it was a 87 or an 89 and i finally junked it considering my dad only paid 300 for a car with 50000 miles on it and i drove it everywhere and to everything most rides were over three hours and i think i put like another 30 or 40 k on it in a year and a half lol i did but it always drove straight and true and i deff didnt change the oil every 3k miles and it was amazing how it would keep going