A method of vehicle-to-vehicle monitoring includes: receiving, at a monitor vehicle, a trigger to provide a report relating to a target vehicle, the trigger including identifying information of the target vehicle; obtaining, at the monitor vehicle, first information wirelessly that at least partially identifies the target vehicle; determining, at the monitor vehicle, that the first information corresponds to the identifying information of the target vehicle; and reporting, from the monitor vehicle based on receipt of the trigger and determining that the first information corresponds to the identifying information of the target vehicle, second information indicating presence of the target vehicle and a location associated with the target vehicle.