You'd better believe it...I've nearly got my basic trackwork done (albeit with pumpy hills...but my corners are sweeeeeeet), then my terraforming, and then any finishing touches.
I hope he doesn't win because of 3DS. Many of us don't have it and as far as I knew, this contest was based on the track itself...
The 3ds had nothing to do with the track, all the brakes & stuff were done using supports.
Sheikra has a U-turn out of the station:
http://www.rcdb.com/ig2662.htm?picture=71
http://www.rcdb.com/ig2662.htm?picture=69
EDIT: Ehhhh, missed a whole page in which people already said this
Some may be slightly elevated due to running rails, and there be just enough room to squeeze underneath and suffer some serious injury if you get snagged up the wrong way.