Eh, how much I like it and how much I don't like it are pretty much equal.
It's nicely detailed and it's a pretty nice map. However, I hate that half of the track is floating and hard to get back onto if you fall, getting killed on the track (WTF?!) is annoying (and it's annoying when you're high above the track it kills you for "being on the track" as well).
My suggestions: raise the terrain a bit under the track, remove the stuffty and down-right annoying gimmicks, and you should make it look more like a real racetrack. So far, I'm liking this better than Aphtonites' (sp?) raceway, but it still needs a lot of improvement.
Keep up the good work, though. :D