Hi all!
It's Oskari from Lapioware. Some people here might remember me from the early 2000's BVE scene when I did BVE Route Randomizer, Random London Underground route generator and a bunch of other stuff. Since then I've been working on a brand new simulator which is now released.
The sim models British Railways DMU Classes 112, 122, 126 and 127 in the late 1960's. The focus is on realistic physics and operation. The AI is also quite sophisticated and can operate the trains in a very human-like way.
British DMUs probably aren't very popular on this side of the pond, but you might be interested in supporting the next version. It'll include more routes and rolling stock, also from the US. The rough plans for the next versions are listed here.
http://www.RailcarSimulator.com