If I'm honest - the only US car designs that have ever sat easy on my eyes are the Mustang, Dodge Charger, Ford Mercury Cougar and the Stingray they gave to the astronauts. Having said that the Tesla Model 3 is just about the only modern mass production car from anybody that I like the look of in the last 30 years so they haven't done too badly.
To each his/her own, but there are some lovely US designs over the years, even boxy shapes with nice edges. I'm sure Chewy can post about 30 cars that nobody else likes, but some of these give the feel of the carefree, open road ahead. Maybe that's just a Yank feeling, and the experience probably doesn't exist any more, but cars can still give the feeling.