How about this then?
I tow with a VW Caravelle and the mirrors were just not wide enough to see down the towed caravan when we changed to a slightly wider model.
The mirrors on the VW are held on with three exterior 6mm screws which go through the housing and into the doors. I could not purchase any towing mirrors to suit the VW mirrors, so I had a brainwave. I removed the mirrors and made up extension blocks which extend the offside mirror 40mm and the nearside 25mm.
I now have perfect towing vision and I cannot see how this modification could be illegal in any way as I am using the original mirrors which are fitted to the vehicle.
I tow with a VW Caravelle and the mirrors were just not wide enough to see down the towed caravan when we changed to a slightly wider model.
The mirrors on the VW are held on with three exterior 6mm screws which go through the housing and into the doors. I could not purchase any towing mirrors to suit the VW mirrors, so I had a brainwave. I removed the mirrors and made up extension blocks which extend the offside mirror 40mm and the nearside 25mm.
I now have perfect towing vision and I cannot see how this modification could be illegal in any way as I am using the original mirrors which are fitted to the vehicle.