The car design and manufacturing approach in Europe and the US seems to be quite different. In the US, they provide a lot of devices that the user may want (e.g. cupholders) and then function that is required by law. But e.g. the chassis design is still at stage coach level - especailly on pickups and some SUVs (live axles). And passenger safety is not very high on the agenda either.
The European companies focus a lot more on innovation designed to make the car safer and handle better. If you go back in history, those features were usually adopted by the US companies 10 years later (e.g. disc brakes, ABS). And a lot of new features that are relatively common in European cars have not yet come to the US shores.
There is though a main difference between cars in the US and Europe - prices in the US are often nearly half of those in Europe - even for European cars like VW, Mercedes and BMW - and especially for the Japanese makes. Go figure.