Then again, looking at some videos of the real track from various eras, it's hard to tell where the track limits actually are. In some older videos, it seems as if the track edge is roughly where the yellow line in the game is, but the road is not as wide there and the barriers are basically right where the line is. And in newer videos where the road looks like it does in the game and is a lot wider, the yellow line runs next to the barriers, not in the middle of the road like in the game. So maybe that track mod is some sort of hybrid between the old and new and who knows where the track actually ends 
