European vs. Americam X5

[jigaro]

Hello, i have alway wondered about this.
I live in both continents in States and in Europe as well, and everyone over there in my country keeps telling me how better european cars are, for example they argue the folowwing.
-Eventhough american cars come with more options even in basic models, if you wanna buy a used car, american cars are usually extremely worn out.
-Also they argue that suspention in European x5 is better, the car rolls less.
-They also argue that European cars are usually free of squekes and any other sound, in otherwords the ride is free of sounds.
-Guys no desrespetc, these are my friends who all drivve German cars and all knoe cars.
-Also they admit American version has more horsepower.
-In my opinion i must agree with them because my family owns E cass mercedes S class 500, and now 4.6is and these are all american versions and i must say that usually when i ride in European versions there is something about them, sence of more quality or something i just dont know what it is but it just seems muh better, fresher, better taken care of.
-In my country usually on a car market, if you want to buy a used luxury car, if it's shipped from U.S. price usually goes down and European versions are valued more.
Do you guys have any experiences?