In 1976, at the tail end of the Ford Administration, hippies no longer hip, Sue Vargo and Molly Mead decided that they wanted to drive to the Florida Keys in a Volkswagen bus. They were best friends, in their twenties, living in a women-only commune in Massachusetts: muddy boots, acoustic guitars, mercurial vegetarians. They bought a beat-up VW bus, circa 1967, red and white, with a split windshield, a stick shift that sprouted up from the floor like a sturdy sapling, a big, flat, bus-driver steering wheel half the size of a hula hoop, and windshield wipers that waved back and forth—cheerful and eager, like a puppy—without wiping anything away. The bus had no suspension. “You just bounced along,” Vargo said, bobbing her head. “Boing, boing, boing.”
This year, Volkswagen…