To make a booking, just login and select your start and end time then you can search for available vehicles. you'll get a list of available vehicles nearby or you can see them on a map. Our mobile site uses your GPS location to find vehicles around you or, if you're booking from a computer, we will show you vehicles near your home or work. You can always pick a custom location too, in case you want to book a vehicle somewhere else. If you want to ride in style, you can select certain vehicle types or amenities you like (GPS, Bluetooth, etc.) to make those road trips more enjoyable. You can book up to 3 months in advance or at the very last minute, but we always recommend booking sooner than later to make sure you get the vehicle you want. You can book a GreenShareCar for as little as one hour, or as much as five days.