motor coach

Short definition from Wiktionary

Noun

1. 1
   A powered railway vehicle, designed for passenger transport, capable to pull (or push) other railroad cars (compared to a railcar which only consists of a single railway vehicle with a driver's cab at both ends).
2. 2
   Alternative form of motorcoach (a road vehicle)
3. 3
   Alternative form of motor coach.
4. 4
   Alternative form of motorcoach (road vehicle)