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.
Following the cessation of Reliance production, Leyland included ZF synchromesh as an optional feature on the Leopard. However, eventually, Volvo B58 and other imported buses secured a significant number of customer orders.