It doesnt replace any other trailer BUT you can only use ONE American Trailer at a time ingame. So yeah its like standalone in a way. But if you tried to activate 2 of my American trailer skins in one game session you would only see one of them. So you must only pick the one you want to pull for that session. You will still see all the rest of your other trailers though that are NOT American trailers.
The trailer is standalone ?
It doesnt replace any other trailer BUT you can only use ONE American Trailer at a time ingame. So yeah its like standalone in a way. But if you tried to activate 2 of my American trailer skins in one game session you would only see one of them. So you must only pick the one you want to pull for that session. You will still see all the rest of your other trailers though that are NOT American trailers.