A motorail train or accompanied car train (ACT) is a passenger train on which passengers can take their car or automobile along with them on their journey. Passengers are carried in normal passenger carriages or in sleeping carriages on longer journeys, while the cars are loaded into autoracks, car-carriers, or flatcars that normally form part of the same train.
Motorail services are not the same as car shuttle trains or car-carrying train services. Car shuttle trains usually operate over relatively short distances, on lines passing through a rail tunnel and connecting two places not easily accessible to each other by road. On car shuttle train services, unlike on motorail services, the occupants of the road vehicles being carried on the train usually stay with their vehicle throughout the rail journey.