Monterey Car Week in August is a destination for automobile collectors, vintage racers, enthusiasts, and luxury carmakers from around the world. It is also a free-for-all in the best—and worst—sense of the term: Multiple auctions, rallies, races and concours gatherings, topped by Sunday’s granddaddy of car shows, Pebble Beach, all conspire to make the Monterey Peninsula a circus best navigated by a lion tamer with a whip and side chair. What should be simple journeys, like getting from points A to B, are more …