The Petersen Automotive Museum's August Cars & Coffee event fills the museum's surrounding streets with vehicles on the first Saturday of the month in the heart of the Southern California summer show season. August at the Petersen typically draws the widest variety of the summer's Cars & Coffee events — the season is established, the regulars have found their rhythm, and the occasional rare or significant car appears that doesn't participate in the more competitive judged show environment. Cars & Coffee culture at the Petersen has developed its own social infrastructure over years: photographers who document specific makes and eras, enthusiasts who bring cameras specifically for particular classes of car, …