HOCKENHEIM, Germany — Twenty-four hulking, polychromatic stock cars rumbled into a tight configuration last Sunday on the starting grid of the Hockenheimring, an 86-year-old racing circuit in the Rhine Valley, before the final race on the penultimate weekend of Nascar’s Euro Series.

Then the track really began to get crowded.

First, a double-file procession of “Star Wars” cosplayers, 130 in all, shuffled silently across the asphalt. Close behind were three Germans dressed as 19th-century Old West frontiersmen and three more in Marvel superhero costumes. Nearby, two dozen teenage cheerleaders with crisp blue uniforms and swishy ponytails counted out routines in English, as if they had been flown in from an American high school pep rally.

When they were in position, the costumed marchers and the perky cheerleaders all standing solemnly at attention, the American and German national anthems were played over the loudspeakers. It was only after that, after the crowd of characters had cleared the track and the competitors had buckled themselves into their cars, that the track announcer finally gave the familiar refrain: “Drivers, start your engines.”

This loopy cross-cultural potpourri was a small taste of how Nascar — that oh-so-American of pastimes — is translated in Europe, where the organization has been having races since 2012. Each of the six race weekends on the calendar has an American theme, but even the organizers acknowledge it represents a version of America with exaggerated air quotes around it.