The C151C will be the first MRT rolling stock on the NSEWL to be fitted with fold-up seats, and a new Route Map Display also found in the CT251 on the Thomson-East Coast Line. Rumours were spread saying that the C151Cs will have built-in onboard free Wi-Fi have been deemed untrue when the final design of the C151Cs was unveiled on 28 February 2018 at the Tuas West Depot.