Easy and reliable. 'Flex' trips you pick up and drop off anywhere in the Zipcar boundary, which is a great alternative to a taxi or bus/short trips (pay per minute). 'Round trips' you have to take the vehicle back to its parking space, which is better for longer journeys like appointments or to it's and back. Zipvan is within the same app and the uses the same 'round trip' mode. Round trip, is charged is 30min bookable slots. You can hire all the vehicles for the full days or longer if required.