Don't determine the users language by the country the request is coming from. My browser wants English, despite me being in Germany, so don't show me the German page. The good thing though was that besides the language selector nothing else was translated.
This seems more of an problem when living in the USA than an SMS problem. I'm in Germany and there is no way someone gets a new SIM card without someone checking the persons personal ID.
I recall that before unification(in West Berlin) S-Bahn trains used to be older and U-Bahn trains were newer. I do not know current state of comparison between U-Bahn and S-Bahn trains.
The DB bought newer cars in the late 1990s, the class 481. But this class had a lot of issues, which could be mitigated by better maintenance but since the DB wanted to go public those costs were too high, so they cut spending on maintenance.
And so the 481 will be replaced by the 483 and 484.
I'm apparently in the top 0.54% for this year. Whoever says SO hates new user have never used the moderation tools and read the stuff new users write on this page.