The unique steam railcar CZm 1/2 # 31 of SBB Historic, maintained and operated by steam group Zürich, is on his home line, the Uerikon-Bauma Bahn, entering Bäretswil when running train 451K from Hinwil to Bauma, on the occasion of the vehicle meeting 2018. It is pulling car C # 107 of the DVZO.