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lotsofpulpyesterday at 12:01 PM2 repliesview on HN

> 1970s, due to US regulations that required headlights maintained a consistent height.

Were headlights bouncing up and down a problem back then?

Sounds so ridiculous, especially considering there is no regulation about the headlights’ actual height/color/intensity/angle, which causes many drivers to blind others these days.


Replies

Svipyesterday at 12:34 PM

Unfortunately, I cannot find an actual source for this ban. So many sites repeat the claim, but with no citation. So now I am not even sure it's true. I tried searching NHTSA's website, but it's kind of a mess. I do know, that Citroën pulled out in 1974 from the US. The CX, released the year after, was never sold in the US, and the last year of the SM, which was popular in the US, only saw sales in Europe.

p_lyesterday at 12:10 PM

The point of the regulation was to kick Citroen off the market