Well I don't have one but if works van had one you would see a lot of videos of absolute morons when driving around Birmingham, what a nightmare that place is, you see it all around there, I just can't be bothered to have something else to remember to keep taking with me and charging but yeah sometimes it would be handy when morons just change lanes without indicating straight into the side of ya and then claim it's your fault yet the photo's i took I'm perfectly in my lane and he's partly over the white line

but it's works van so I don't care and they only have 3rd party insurance, my own cars I wouldn't drive around Birmingham unless I really had too
Nephew just driving now and he's got one, sent me a few videos of people driving wrong way down roads, can't stay in own lanes and golfs passing him on single carriageway at about 120
Don't alot of EV's have them built in, or is that sensors for something top of windscreen?