My name is Will Pittenger. I have been making KMZ sets for Google Earth for a long time. After I starting making those, I wanted overlays for my sets. I was unsatisfied with the accuracy of the images available at Wikimedia Commons. So I started making my own with Inkscape and uploading them. Then I needed a place for anyone that liked my KMZ sets and/or maps to find others. For a while, a simple blog sufficed. But, once I started getting requests, I knew I needed something better. This site is the result. You are welcome to set up an account. Some activities are for registered users only. Take your time poking around and let me know what you think.
The overlay included isn't the most accurate I have done, but that
image did debut the date of the imagery I based the map on. The layouts
range from A-O. All turns are marked. I didn't see any normal pit lane,
but I did see two possible pit areas and marked them. You can download it here.
The layout you named G is in fact the oval. It was used for a race of the European Late Model Series. It is completely paved as are sections OR-5b and OR-6b. also I'm sure there's no pit area at all. Lydden hill doesn't need it as no race would be long enough to need a pitstop.