That GT2 secret track was discovered by SportWagon I think. But if that's not what you meant, tankuroded, I don't know what track you're after. More details please.
rogo-test is neat --Autumn Ring Mini with strange lighting which accentuates contours, or something
END could be used, but was like a surreal nothingness into which you would disappear.
Sort of driving in the fifth dimension, or something.
So END is just a background right? Like when you break out of Motorsports Land in GT2 and just keep driving to the horizon (which, of course, cannot be reached)?