NZR RM class (Wairarapa)
 The NZR RM class Wairarapa railcar (or Rimutaka railcar) was the first truly successful class of railcars to operate on New Zealand's national rail network. They entered service in 1936 and were classified RM like all other classes of railcars in New Zealand; they came to be known as the Wairarapa class (and sometimes as the Rimutaka class) as they were designed to operate over the famous Rimutaka Incline to the Wairarapa region on the Wairarapa Line.