Ok I have got to get back into LFS autocross and give some more of your layouts a go! And maybe make some more myself. I haven't made any since I did the ones for the LFS Autox competition, how long ago was that now??
I am doing land surveying now these days and planning to take an instrument out to one of our autox events and survey the course so I can get it into LFS to the nearest cm. I need to look at that external software for autox again, but I presume you can import a .csv or whatever with (x,y) coordinates to make your layout.
Then the next step would be to get onboard video of the real thing and of LFS, see how closely it compares
Maybe create a car the same as mine using LFS Tweak!