Isn't it the case that number plates are not designed to make the car visible and serve no useful purpose in this respect. Number plates need to be high visibility for ID purposes only. I think so - that's why you legally have to have a rear number plate lamp to light it up at night.
"Y mae dafad ddu ym mhob praidd" 1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10
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