Hope all is well, guys.
The BMW Driving Centre in South Korea recently painted a new start/finish line on their track. I managed to pull over my car on the line (slightly right side) for seconds to record the coordinate of it - Latitude 37.46237 / Longitude 126.48764.
I have created a new track file duplicated from the existing one in RC with above info... but just in case I am sharing above info.
Have a great day!