R Gruppe is the most misunderstood car club out there. Rgruppe is early 911 car club. Treffen is their’s annual meeting.
As Automobile magazine put it
R Gruppe is arguably the most exclusive, the most polarizing, and the most influential car club in the Porsche universe.
Marilyn Monroe photographed by John Vachon, 1953
Marilyn by Milton Greene for Look Magazine in September 1953.