You have a grace period of 5 minutes to return the GoCar after your booking ends. In some cases, there may be another GoCar member waiting to use the car. There will be a penalty for returning the car late if you have inconvenienced another member.
If you realize you need to use the GoCar for more than the duration you booked initially, you can easily extend your reservation through the GoCar app or mobile site.
For more details, refer to Late Returns, Fines and Other Fees.