Pasi:
How long did you play?
When do you think trains become to cheap to run?
Capital expenses are covered in HSR track, which is uber expensive to build ( about 30 times more expensive then regular ). Also, historically speaking, running cost of a mainline locomotive was kind of flat when adjusted for inflation, so BR103 being just 2-3 times more expensive then, say, prussian G3 is quite realistic.
I am now playing a hard large map and it took me 85 years ( 1850-1935 ) to finally set up my main line to double track and run some freight on it. For the first 30 or so years it was a struggle to survive, in spite of running 15 car trains almost chock full of people. Heck, I still cannot afford electrics, since they are 2,5 million a piece in the current build of BM 🙂
Anyhow – the passenger car weight is actually a bug in the game acceleration code. BM just tries to work around it.
I am now waiting for the next patch, so I can adopt BM to it and release next version and I will gladly make adjustments for advanced players.