Many new cars come with smart features these days. The new Citroen C3 has a ConnectedCAM, which is a HD camera with GPS and 16 GB of memory. It has a 120-degree lens to record what drivers see. It is installed behind the rear-view mirror.
Such a camera lets you record videos on the road to share with others. It also detects collisions to record video as evidence. More information is available here.