Mirror-polished tanker truck - GIF

Mirror-polished tanker truck.

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Previously:

1983 Vespa with multiple side mirrors and lights - photo
Ancient Egyptian bronze mirror - photo
Casting a 0 million mirror for the world's largest telescope - video
How mirrors were adjusted on a 1955 Ford Crown Victoria - GIF
How to make a mirror - GIF
Infinity mirror table - GIF
Side mirror camera system - GIF

Oh, this can go wrong so many ways...

How about distracting the driver following

or

blinding drivers with the sun

Folks have enough problems with other vehicles being too reflective when the sun is at particular angles.

Looks to be Japan, judging from the roadside sign. They probably have a special machine just to polish those trucks, and a public shaming ritual if your truck is not shiny enough.