You’ve heard the stories: Irv Gordon’s three-million-mile Volvo; Rachel Veitch had the oil in her Mercury Comet changed every 3,000 miles since 1964; a 102-year-old man drove the same car for 82 years. In the car world, we think of these rare owners as moral heroes. Whatever their reason—sentimentality? Yankee thrift? Obsessive compulsion?—they’ve sacrificed the novelty of the new for a durable relationship. They’ve won a marathon most of us don’t bother running.