Hello. I will be happy to help you in your project. I can make sounds of cars from Poland like 152-154A type Z1 or another thinks. If it will be possible to make Polish rails in your game. So i can have some properties of Polish cars, locos.
I will be happy to make it. I am interesting where i can find info about railways, rail lines for make sceneries. First i think about Polish train Chopin from the last year where he goes to Graz too.
