You hear about Monterey, you hear about Goodwood. You never really hear about Watkins Glen, and that's just fine. This ain't about megabucks jetsetters and multinational corporate sponsorships. It is instead an annual pilgrimage to the ancestral home of sports car racing in the United States, and something sacred would be lost if it were opened up to nonbelievers.Every September, on the Friday before the vintage races at the track proper, the tiny lakeside hamlet of Watkins Glen is overrun by an unparalleled gathering of automotive awesomeness, the city streets and country lanes that made up the...