Damn, this looks like fun!

Too bad its in CH
http://youtu.be/-SLIP0E45Ts

Here's one a little closer to home, that you might even have a car that qualifies for:
http://www.youtube.com/watch?v=_md3nvbMaoU

We're those Miata GT Coupe's factory or aftermarket? I'd read a while back there were actually a few factory ones.

They were from the factory but only like 200 were built if that.