I don't love a mustang but cars are really pretty personal choices. I fucking HATE my shitbox car, but looking around the parking lot at work, there's not one I would rather have - they all kinda suck.
personally I'm not into power, inefficiency, big cars, really the mustang does zero i'd want in a car over any other car, but i'd still own it if only to sell it and get some cheaper garbage that i'd hate as much but spend less on. haha.
I do love my samurai tho. but also hate it too haha
To me part of why I love it is it relies on me too, you know we have a real relationship, it's not all give, I have to give a lot back and together we go places me and my car. so in that regard a mustang's prolly gonna keep ya busy. but also they go fast and look traditionally cool and for sure the fast can be fun and the traditionally cool fits a lottta people's interests I guess.
tldr; cars are dumb but there's a million reasons why people might like any one over anyother