On the section from the end of the cobblestone, almost always to the Biergarten (I think) you've posted a few cars parked at the end of a section of road, presumably they are track officials of some type. Cool. But then we pass quite a few small country homes & barns that are unreachable. There is no small driveway, even if it were to be a dirt entrance to the property. The land is lush and big behind these objects, so I know they're not accessed from that side.
That is probably part WIP-ness and part laziness
After you leave the Oberreifenberg village, there is a side road on the left that runs all the way to the Rotes Kreuz gasthaus (the second gasthaus, where you turn left up the hill). In my mind, that side road is where you would go to get to the farm on the left (there's actually only one house, a barn, and a watermill in the distance). I did plan on adding a five-bar gate off the main road as access to the farm, but well spotted
If you look at the area on Google Maps you can see that I have missed out almost all of the side roads around the circuit. Again, probably just laziness or eagerness to get the track useable in-game, but at the time it seemed like a lot of work for very little impact. The side roads are something that I will probably go back and add in the future, if I think that they will improve the look of the track.
I have so much left to do, all of it fiddly, time consuming jobs too. Only yesterday
@Mascot sent me a link to a historical website with loads of phitos taken in the '50-'54 period, but I am too scared to look at them in case I see things that are wrong with my project
Overall, though, I am quite pleased with how this is working out. People who have tried it seem to like it, and I have quite a clear picture in my head of how it will look when it is complete (which is always a good thing when you are working on a project with so little information to work from).
Thanks to everyone who has helped me along the way - cheers guys