When is a Volkswagen not a Volkswagen? When it’s a Skoda, obviously. The all-new “B9” Passat is essentially identical to the Skoda Superb wagon, sharing all the body panels and being manufactured next to the Superb in Bratislava. (Yes, that Bratislava.) This is the only available body style; the liftback that defined the Passat on its 1973 debut is gone…