Annoying sounds from cars at stop light

dill, are you saying you need to be 28 feet away in order to “fully” hear a 40Hz tone? I get the math but trying to understand how’s then we could hear the “whole” music when hearing all the frequencies from the same fixed listening position. Need to fresh up on my physics...

I’ve been inside one of those cars, actually a full size Cadillac SUV that one of my much wealthier than me friends owns. He has a mega dollar audio system at home and spent serious money to upgrade the system in the SUV and I must admit the sound quality - with all the windows rolled up, is really excellent. The bass is clean and layered and very warm and pleasant even at moderately high decibels. No shaking or vibrations whatsoever. Never heard it from the outside though. I guess it all depends on the quality of the car and the system inside.