It used to be a caboose which was used by the trains crew.
The caboose
caboose
Guard's Van or a caboose.
It is called a Caboose in America. In British terminology may be called a brake van or guard's van.
traditionally, it was called the caboose. Cabooses are rarely used anymore. A local train may use them as a shoving platform if they are making long reverse movements. The caboose was replaced with the EOT (End Of Train device). So today the last car is just another rail car and doesn't really have a title and is generally referd to as simply the rear car.
Each part of a train is called a car.
The "Engine".
is it engine?
the pusher
If it's a powered locomotive, then a locomotive. If it's a car with a cab to control the train, then a cab-car. If it's a train powered by itself, called a Multiple Unit (MU) with the engine part of the train, the front is called, well, the head end.
The car at the head of the train is typically the locomotive or engine, which is responsible for pulling the train and providing power. It is usually located at the front to ensure proper control and visibility for the train driver.
The Caboose