Course rental is a service that allows people to rent golf carts for a certain period of time. CART is the four letter solution to the crossword puzzle, and it stands for 'Club And Resort Transportation'. This type of transportation is often used on golf courses, allowing players to get around the course quickly and easily. It can also be used for other recreational activities such as sightseeing or visiting attractions. Course rental services provide customers with a convenient way to get around without having to own their own CART.