Bull and I made a roller coaster quite some time ago, and decided that it was time to one-up it, in every way. The result is a roller coaster built from 800 props on gm_hugefuckingocean (all water), the props used are HL2 and PHX. The train uses E2 and ApplyForce and obeys the laws of physics to some degree, meaning it will slow down uphill and speed up downhill. It also emits sounds and “whoosh” where appropriate.
I’m also releasing a track builder I made for such roller coasters, although, it was actually not used to build this roller coaster as it was made after all the track had already been laid out.
Information and download link available in the YouTube-description.
Bull has now also released the improved code for the carts, more information here: http://www.wiremod.com/forum/finished-contraptions/21627-scenic-roller-coaster-800-props-video-code-released-5.html#post206189