Car sharing is a model of car rental, available in over 1000 cities in many nations, where people rent cars for short periods of time, often by the hour. They are attractive to customers who need only occasional use of a vehicle, as well as others who would like occasional access to a vehicle of a different type than they use day-to-day. Car sharing is preferable to car rental, as stations are located in city centers and neighborhoods much like bike sharing stations, so they are easily accessible to city residents as a point-to-point form of transit.