Are we sure it creates a vacuum and not the opposite?

Maybe it’s supposed to be a 50m radius. Of a sphere.

If you think two car lengths is tailgating, you haven’t seen nothing yet!

Little granny needs to jack up her seat to its maximal height. And maybe get a booster seat if necessary. Either that or a periscope.

Why? Do you want them to tailgate you instead?

Humans aren’t actually that good at visually measuring distances.

https://www.scientificamerican.com/article/judging-distances-and-depth-perception-change-with-arm-length/

More like Six Packs