[1] In 1955, CCMC successfully tendered to body 125 single deck Leyland Royal Tiger Worldmaster buses for the NSW Department of Government Transport.

[1][2] In May 1956, Jack Violet, Hillsdon's nephew by marriage, was employed as Bus Divisional Manager to oversee operations.

[9] CCMC also supplied components to Brisbane bodybuilder Watt Brothers in the 1960s[10] and Perth's Howard Porter in the 1970s.

[14][15] In 1997, Mercedes-Benz, along with Custom Coaches as a sub-contractor, was awarded a contract by the Government of New South Wales to supply 300 ultra low floor CNG-powered uses for the State Transit Authority.

[16] As a result, in 1998, Custom Coaches began bodying the new buses for State Transit after a break of over 37 years.

[18][19] It had been formed in 1999 when a consortium of CCMC, Jim Bosnjak and John Hewson purchased the PMC Australia business following the collapse of Clifford Corporation.

Cabcharge stated that "given the current world economic situation", CDC decided they "should not proceed with this (bus building) business in Australia", and they would "focus on their core operations".

[1] In May 2010, the Sydney plant moved to new premises in Villawood[26] and in June 2012 the company was purchased by British bus manufacturer Alexander Dennis.

[29] On 15 August 2014, the business was purchased back by Mark Burgess and Allegro Funds and the company was renamed Custom Bus.

[34] The following month, Dunn Group purchased Custom Bus, and in May 2018, relocated its factory to St Marys.

[17] The Custom CB60 CMAX was released in 2007, first deliveries going to Busways Western Sydney on Scania K230UB Euro 3 chassis.

[48] The Evo II featured weight reductions compared to the original CB60 as well as new headlight styling, a slightly modified rear and minor interior changes.

It came with LED destination displays by default, had improved stop bells (the ones on the original CB80 were notorious for malfunctioning) and other minor differences.

The Custom Denning Element is an electric bus that can travel up to 500 kilometres, a typical range from a full charge and can seat up to 45 passengers.

It features high-tech battery with powerful LED lights and driver assistance technologies and with lightweight engineered frame.

[55] The State Transit Authority then placed an order for 10 vehicles to be delivered from December 2021 to March 2022 out of Waverley Bus Depot.

[59] Custom Denning has plans to launch the Element electric bus in the United Kingdom, build a left-hand drive model for continental European countries like France and Denmark, and possibly launch the Element model in North America.