Ask your grandparents about how long they expect a car to last. It’s a safe bet that they tell you that most cars begin to show severe signs of age at 50,000 miles and are junk at 100,000 miles. While that advice may have been accurate for vehicles in 1973, today’s passenger cars will last more than twice as long as their predecessors did 50 years ago.
The typical car in 1973 had a painted steel frame, an underpowered carbureted engine (calibrated with a screwdriver), and a simple steel exhaust system. The interior was likely vinyl or velour (a synthetic wannabe velvet), and incandescent light bulbs were
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