The HEUSER company founded the ARGE HRS Omnibus oHG in 2009, which also includes the Racktours and Stroh-Bus-Verkehrs GmbH companies. ARGE HRS currently mainly serves the MKK-33 line, on which only blue (formerly yellow) buses are allowed to run. The newer cars have a blue color, as this is supposed to represent a modernization of the yellow color of the older buses of the 3 companies. The first blue bus comes from HEUSER. The reason for this was probably that HEUSER was allowed to run regular services again at the end of 2018 after the Viabus bankruptcy.
Perforated film on all window stickers