Yep Norwegian railroad with variant surroundings. I would love to get the full 7 hour length of it. Here is even a full video of how it looks :P
Yep, good idea. The line from Bergen to Oslo is a fantastic scenic route. Sould be split into two DLC (Bergen - Ål | Ål - Oslo), each 250km long. Modern locos and coaches, tracks and signalling systems. I like it much.