I personally i recomend that you don't buy this game unless you have a very strong computer, I installed it on my pc and it slowed it down, gave my pc errors, and then finally it crashed my pc. trainz 2004 or 2006 is safer.
Don't try 2010! it wiped out my pc, buy the way there is a file you can download into your trainz 2006 and its the trains from UNSTOPPABLE
Yes i downloaded it but i found out it was for trainz 2004 or 06 and i had 2010 so no go but the package includes 777 767 the lash-ups and 1206