Described herein is an onboard vehicle system capable of gathering driver behavior to be provided to a service provider computer. In some embodiments, the onboard vehicle system includes one or more input sensors, such as camera devices, configured to capture image information surrounding the onboard system. Upon detecting another vehicle within the image information, the onboard system may determine a vehicle identifier and determine, based on the vehicle's movements, that the vehicle is exhibiting anomalous behavior. Upon detecting anomalous behavior of a vehicle within its vicinity, the onboard system may transmit an indication of the anomalous behavior and a vehicle identifier to the service provider computer to be stored in a database. In some embodiments, the information provided to the service provider computer may be accessed by one or more users over a public network.