There is something we could have on cars since at least a decade or more and that I don’t understand we don’t have : HUDs. I already saw one in a top-end car a

There is something we could have on cars since at least a decade or more and that I don’t understand we don’t have : HUDs. I already saw one in a top-end car and it’s absolutely practical. I can’t imagine that it costs anything to embed that in a car (it’s just a monochrome, really bright LED screen) so I assume manufacturers just want to keep them as high prices options.