[inferiorhuman]

In the US most places are less concerned about the hitch and more about the vehicle itself. Even if the identical car is sold in Europe and rated to tow something hefty, it's probably not rated as such in the US and you'll have a hard time getting someone to rent you a trailer.

Part of the problem is that there are generally more restrictive speed limits on RVs and cars with trailers in Europe (and those limits are generally more stringently enforced). e.g. Spain sets a limit of 90 kph for a car with a trailer while South Dakota sets the limit at 130 kph.