This is becoming popular in the haulage industry and personally I wouldnt mind having one as the amount of people who cut you up etc and almost cause accidents just because they have to get past you is unbelievable. Some of the cheaper ones are permanently recording but only actually save if you swerve or break hard the newest Roadhawk overwrites but will hold a good few days of constant driving and GPS location/speed etc however its a bit pricey for in the car.
I`ve lost all details of where I bought the camera from but I know it was somewhere in China. But since then I thought it had packed up so I bought another from a supplier in this country I think from a supplier called "baileysbigstore" but he doesn`t seem to have any now.
I got the old one working again and was going to fit it in the rear window but thought it was abit over the top so it`s going in my daughters car.
The new one has a flip down screen and cost about £30. There should be plenty of them on Ebay. If you want I can take a picture of it fitted and try and post a small video when i get home from Rugby.tomorrow