Prototype i regret to inform you that the pitlane is still unfixed. I have tested 0.8.1. The pitlane speed is still fluctuating, and the pitbox still disappears
https://mega.nz/#!oLIjAIzC!kbvT9y1hDXKm5Eyrh9KIegOP8ghxaoqQhvUh50M6fZI
The travelling lane of the pits is still not fixed and for the sake of accuracy, the pitlane limiter activation and de-activation lines are not where they should be compared to the circuit IRL.
Here we can see the furthest line on the left of screen marking the exit of the pitlane (notice the red light on the wall) and the de-activation of the pitlane speed limit.
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Here we can see from the preview of the ACC Kyalami Laser Scan, that the pitlane speed limit activation line (white line at bottom of screen) is actually in the lane somewhat, rather than on the split of the track and the pitlane entry road. How you have it is actually quite dangerous, as people in some leagues may run an app that records pitlane entry. Attempting to slow down on-track will most likely result in accidents.
I hope you will be able to fix this. The pitlane exit is actually alot smoother so you did well there

Overall this track is amazing, and I will be really happy to race on this and show this off in my league.
Regards
A Fan of your hard work and dedication!