Why Are There Slots in 70s Car Bumpers?

Most cars on the road today have smooth, uninterrupted bumper surfaces. But many older cars have vertical slots cut into them, right where the bumper meets the body.

If you’re old enough to remember, you probably had a car with these slots at some point. But what were they for?.

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It turns out that those bumper slots served a very specific purpose. They were there to help dissipate the energy from low-speed impacts.

In the event of a minor collision, the slots would help to absorb some of the force and reduce the damage done to the car.

Today’s bumpers are made from materials that are designed to crumple on impact, which serves the same purpose as the old bumper slots. So why don’t we see them anymore?

The main reason is that modern cars are built with safety in mind from the start. Bumpers are just one part of a much larger safety system that includes things like airbags and seatbelts.

In a low-speed impact, these other safety features will do a better job of protecting occupants than anything else on the car.

So while those old bumper slots may have been functional, they’re no longer necessary. And in some cases, they could even do more harm than good by giving occupants a false sense of security.