New noises don't bother me. The amount of things that can shake rattle and roll (it's a mess but it's all tools and things I need for work) means a new sound pops up every week.
It's the new slightly different vibration that sketches me out.
Ever so slightly up/down vibration that you can barely feel when you get to 70? Congrats, next week when you drive to work you'll hit a bump at 15 and the whole ~~front~~ bottom falls off. And now you have 3 other problems because drive shafts start flying all over and smashing into things when they break.
No, I love vehicle ownership and definitely wouldn't prefer to relax on high speed rail for 20 minutes with a rolling bag/tool box or literally any other form of mass transit...
I'm sure there are cars where I wouldn't feel a thing and all that, but mine would shake itself apart.
120/75 is my limit, and honestly my truck shouldn't be going over 90/55 because it loses the tiny bit of efficiency it has.