This Mercedes O500LE/Bustech VST 21 (126KZF) is one of a pair purchased in May 2008, the other being 22 (127KZF). It is seen in the depot in August 2009 sporting the Translink livery then being adopted throughout the greater Brisbane area.
A second pair of O500LE Mercedes followed only four months later: 23-24 (407/6LIU). This is 23 heading for Woorm, seen outside Caboolture Station in August 2009.