Eli5 Why modern car headlights are designed as single units and not modulararly like in the past, making it so replacing the whole unit now being required if the LEDs burn out or the glass/plastic gets damaged?
In: 6
Having a custom shape allows the designers to give the car the appearance of their choice. It also lets them improve the aerodynamics for better gas mileage.
Yes, they are prioritizing easy manufacturing and other aspects of how they want to the car to look/function, at the expense of being able to repair and maintain the car in the future. This is a problem for consumers.
But if it was *only* a cost cutting measure, they would probably save more money reusing an old or universal headlight instead of designing and manufacturing a new one. It’s not 100% them cheaping out or trying to prevent repair. They have other design goals that are better met with a custom shaped headlight, and they are focusing on those.
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