The term BAR CAR is composed of two words, AXLE and LIMO. An AXLE is a shaft that connects two wheels and transmits power from one wheel to the other. A limousine, commonly referred to as a limo, is a luxury vehicle with a long body and a partition between the driver and the passengers. The term BAR CAR is often used to refer to a type of train car that has a bar or lounge area for passengers to enjoy.