A 1957 Plymouth by far. In 2.5 years at college the front torsion bars snapped, the wiper motor failed, I needed rings and valves, a rear spring snapped, and the floor rusted out so badly that the front seat fell through it. The windshield leaked prodigiously; I could have used wipers on the inside as well.
One of these cars ( Fury Hardtop) was put in a time capsule by the city of Houston, and dug up in 2007. It was a completely rusted hulk, even though it had no miles on it.
By contrast, there is a 1957 Chevy Bel Air parked in front of the Independence Hall in Malacca, Malaysia, which became independent from Britain that year. In spite of the tropical sea air, it stll looks great.