I got one of these, either off ebay or tanga, don't remember it's been a few years.
Cam works great, very surprised at the quality, even at night.
Only issue is over time the flip portion is kinda loose (not an issue since it hangs upside down on the windshield). I have not looked at it to see if I can tighten (there are some screws). We play with it all the time out of the vehicle. I have some other ir lights we use with it and it will light up a room (on the cam, not what you can actually see at the time).
It plugs straight into the computer and you can download the videos. It also records audio but not sure if that is a factor if you plan to use it only in a vehicle.
It came with all the cords/connections to either plug into the vehicle to start recording when the vehicle is started or you can use the buttons to start recording. Like I said, we walk around with it at home for a night vision camera.
I doubt I paid over $20 for it at the time. I might have just got lucky.
You can catch some crazy stuff