Hope you don't mind, but I'm using an amended (by me) copy of your layout on my server (Sin'rs).

The main changes are swapping your track outlines for speed humps and making track width more uniform.

As I use it mainly for timed event, I've added checkpoints and route markers, although as I have LFSLapper InSim loaded along with my drifting scoring system, can be used on my server for drifting too.

Top times per each car and top 20 drift scores achieved to date on the modified layout.......

......from past experience I should think that all my times are beatable by 2 or 3 seconds.