In 2015, Sixt created a memorable campaign after ongoing strikes of the German rail system (Gewerkschaft Deutscher Lokomotivführer, "GDL"), naming GDL chief Claus Weselsky “Employee of the Month” in the advertisements.
Di 2015, Sixt dibuat berkesan kampanye setelah berlangsung serangan dari German rail system (Gewerkschaft Deutscher Lokomotivführer, "GDL"), penamaan GDL kepala Claus Weselsky "Employee of the Month" di iklan.