four-wheeler

noun3

1. •
   A horse-drawn hackney cab with four wheels, as opposed to a hansom or dogcart .

   • The local doctor was often seen passing by in a four-wheeler on his way to a house call.
2. •
   A small off-road four-wheeled powered vehicle, usually used for recreation or farm work.

   • The ranchhands use four-wheelers to move about the ranch, ferrying supplies and patrolling distant fields and pastures.
3. •
   Any vehicle with four wheels.

   • Many of the earliest locomotives in the 1830s were four-wheelers; larger models with more axles would come later.