Various examples are disclosed of how to leverage technology in a vehicle to provide various services in a convenient manner. For example, the pairing of the portable device with the on-board computer of the vehicle may be utilized as a level of authorization to provide certain services in a more automated and/or convenient way to the vehicle driver or other occupant of the vehicle, such as by authenticating wireless transactions with entities external to the vehicle using device pairing technology, and by modifying vehicle navigation routes to include suggested nearby points of interest that may be determined to be of particular value to a vehicle occupant.