The 660 & 760 Class railcars are a Diesel Multiple Unit train built by the New South Wales Government Railways (NSWGR) and used in the latter stages of their life by CityRail, primarily on its Hunter Valley line. The trains have since been phased out in favour of the newer Endeavour railcar model. The 660/760 railcars were converted by NSWGR from earlier 600/700 Class vehicles between 1973 and 1975. All sets were withdrawn by 1994 and some have been preserved in heritage rolling stock collections.