I have said for a couple of years now, that with the advent of black boxes, it will not be long before all cars will need to be fitted with them. This is under the impression that ALL motorists drive like "xxxxx". All motorist speed, that is a known fact, but speed does not cause accidents, people do. speed can BE A FACTOR, but in the end it is the Driver that loses control. When we had all these cameras put in place to stop accidents, the simple premise was speed kills. yes it does. BUT and here is the main point, most cameras were put on roads where there were speeding cars, with junctions near. Look at the accident rate at these black spots, and you will find that most of te accidents were not caused by speeding, but by idiots not paying attention to the road, and pulling out into a main road with other cars on. A quick look on DASHCAM UK on you tube bears this out. A speed camera CANNOT catch a motorist speeding if he is not or an accident where the idiot pulls out. Insurance companies give a discount in some cases if certain APPROVED dash cams are fitted, double edge sword, if its not working for any reason and you have an accident, you may not be covered!
Back to the original point, with black boxes fitted to cars, these read the area you are in and check the speed restrictions in that area. With inbuilt car sat navs, you have the same thing (mine beeps when im over the speed limit by 5mph). It is not hard for manufacturers to linkl either of these 2 items to the EMU in a car and NOT LET YOU GO ABOVE THE SPEED LIMIT!
Also on side note, I had my complusory water metter fitted 2 years ago. It will be cheaper they said! for 2 years I paid monthly on the old system. Always £10-£20 under under on the old system in my favour, when they send my comparison through........had my first compulsory bill through, and guess what......Im paying £25 a month MORE than under the old system, when I complained about it, they said had used more water. When I got my old bills out, I was using less water than 2 years ago with 4 adults in the house!!!