A product of standardisation due to new regulations created by the BoV (Verband Offentlicher Verkehrsbetriebe or the Association of German Public Transports), the Mercedes-Benz O305 (launched during at the 1967 Auto Show) was a low floor bus. Originally meant to be a single-decker, they were later built as double-deckers.

With 41 seats, this bus could carry another 61 passengers standing. The bus because of her low maintenance costs become so popular that over 15,000 of them were built for nearly 18 years starting 1969.

This scale model is an accurate representation of the one that was used at Frankfurt airport to ferry passengers to a nearby business park called Monchhofstrasse.