The Dash-Cam Hack
The dash-cam hack is less of a car hack and more of a contingency plan for a road accident. If a driver is involved in an accident, the camera can serve as evidence. The cam captures and records events as they happen and it can be examined for investigation or as proof.
Unlike the rearview cam that allows smooth navigation when reversing, the dash-cam is a bit different since a driver sees through the windshield what the cam displays. This could count as another car hack that needs a professional fix.