Apparatus and Method to Provide Access to Shared Vehicles Without Power Locks

A vehicle sharing system for use with a vehicle. The vehicle sharing system comprises: i) a lockbox mounted on an exterior of the vehicle, the lockbox including a vehicle key that opens a door of the vehicle; and ii) a vehicle sharing control module disposed in the interior of the vehicle. The vehicle sharing control module communicates with the lockbox in order to open a door associated with the lockbox in response to a first command message received from a mobile device associated with a user. The lockbox is mounted on a license plate holder of the vehicle and the license plate is mounted on the door of the lockbox.