Cars on rails refers to a type of transportation system that combines the convenience of cars with the efficiency of railroads. It is a form of public transportation that uses electric-powered cars running on dedicated tracks, allowing for faster and more efficient travel than traditional cars. The term 'TRAINS' is used to refer to this type of transportation system, as it is similar to a train in many ways. Cars on rails are becoming increasingly popular in cities around the world, as they provide an efficient and cost-effective way to get around.