Here is a smart dashcam that lets you record what is happening inside and outside your car. It has a wide angle front camera lens with 140-degrees field of view and a 120-degree rear camera. The camera is smart enough to record collisions automatically. The front camera has 1080p resolution while the rear camera records 860*480 video.
This dual recording dash camera is available for under $130 at this time.
[where to get it]