The first truly successful railcar classes to enter revenue service in New Zealand were the two that began operating in 1936,[REF] following the building of the Red Terror (an 8-seat inspection railcar) for the General Manager, Garnet Mackley, in 1934.
The Silver Ferns were the only railcars to survive into the privatisation era of Tranz Rail and Toll Rail, and later re-nationalisation as KiwiRail.