Yeah the track is all 1 brick... kinda. The stuff you can see is a brick, but the collision is made up of 38 different collision shapes, with about 6-8 meshes each. The track is in total about 1k faces. I wasn't aware there was a quad limit on bricks, but apparently that hasn't been an issue here. It's ugly and pretty much unusable due to the unstable track and simple collisions. I'm also pretty sure that cheating the brick limitations have some kind of downside I'm not yet aware of, so it's really just a proof-of-concept.
On-topic: my server's up right now! Come on over if you wanna wait through a long download time coupled with a stuffty connection. Teaser: