A DAY or so recently I noticed on television a direct marketing company were offering coloured see-though sun visors for cars.
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In theory, a very good idea to reduce the suns effect in ways to make driving into the sun much safer VISUALLY.
ROVER cars has these way back in the 1950's on several models as I recall into the early 1960's, maybe later.
They were then banned because being non-flexiable coloured plastic type material, they, in England stopped fitting them because it was found in certain motor accidents they were killers, damaging front seat persons heads.
I recall reading that in fact they had decapitated some people.
That is why sun visors now, and for a very long time have been made up very soft and collapsible.
This recovered idea needs investigating.
_ JAMES FRENCH, Perth.