Has anyone noticed the blind spot or wide angle door mirrors fitted to the police vehicles seen on motorways? They're much more substantial than the useless things from Halfrauds and the like.
They seem to be either fitted to the leading edge of the door or on top of the existing mirror. Either way they look to be much better than any other add-on blind spot mirror.
Anyone, perhaps we have some police DIY-ers on the NG?, know where to get them or who they are made by.
TIA and apologies from the OT-ness!
Richard