$3.47 safety mod....

[Co-opski]

Same here. Got the idea originally from the reflective triangle stickers on the doors of a girlfriend's mid-80s Volvo, first put them on my 1985 Saab, and something similar has been added to every vehicle since.

Here's what the ones that inspired me look like:
http://www.skandix.de/en/spare-part.../adhesive-foil-door-warning-triangle/1029550/

same here. 1985 240dl, now my nissan and subaru have it.

 

[91AzXJ]

My SAR vehicle had it on each door jamb and worked great, kept idiots from hitting my door when open at night.