Bus 3 – Go-Ahead Singapore Mercedes-Benz Citaro (SBS6469T) [Kindness Day 2021] Bus 3 – Go-Ahead Singapore Mercedes-Benz Citaro (SBS6469T) [Kindness Day 2021] Bus 3 – Go-Ahead Singapore Mercedes-Benz Citaro (SBS6469T) [Kindness Day 2021]