[6] Various AEC engines were fitted during the chassis's production, including the 7.7-litre AH470, 8.1-litre AH505, 9.6-litre AH590, 11.3-litre AH691 and 12.4-litre AH760.

[7] Transmissions fitted to the Reliance include an AEC synchromesh gearbox, AEC Monocontrol semi-automatic epicyclic transmission, and ZF 6 speed crash-gearbox.

The Reliance had the Leyland Tiger Cub and, from 1959, the Leyland Leopard as its major competitors throughout its life, even though they were built under the same ownership from 1962 onwards.

[8] After production of the Reliance ended, Leyland offered ZF synchromesh as an option for the Leopard, although the Volvo B58 and other imported buses later won a number of customers' orders.

[11] McVicar's Bus Service, Sydney operated a total of 44.