There's been a pretty big update:
[list]
[*] Added Russian language
[*] Added new sound of rattling wheels (more muffled)
[*] Added audio of passengers' conversations in compartment (wear earphones to hear)
[*] Added wheelset whistling sound during turns
[*] Added songs on radio (no DJ chatter)
[*] Increased viewing angle of head turn while sitting or lying down
[/list]