Just wanted to highlight this route. Just look at this gallery! The included Incline Railway is a great feature too. When you go up, the other car goes down and vica versa. It is available free from http://www.train-sim.com It is 169MB though.
It installs as a seperate simulator altogether and requires 500MB of disc space but also requires MSTS to be fully installed. It is very highly detailed yet the framerates are superb with full sliders maxed out!
Go get it guys - it's worth it! I've waited all morning for it to download and I am thoroughly glad that I did! One of the best routes I've certainly driven!