CoasterGeneratorer

Which file(s) contain the physics simulation code? My goal is to run the physics simulation outside of the game without any of the graphics or auxiliary game mechanics slowing down the simulation. And if I can understand how Chris went about simulating friction, gravity, etc on the roller coaster, then I can hopefully emulate and possibly accelerate the simulation outside of the game.

I tried to approach this problem about 3-4 years ago but I could not figure out how to automate the scoring of the ride. Has any progress been made on this front, or does it still require manually opening the game and making the coaster to get the statistics (nausea etc) for the guests?