Hey,
another update fot the Austin circuit:
I know, in TV the verges all looked like painted tarmac areas, but the green parts behind the kerbs in real were short artificial grass. I don't know why in Austin they have chosen an other colour (brighter) for their astroturf as for other F1-tracks, but they did.
To make it quick: I made a new col-file with every green surfaces after kerbs having 'hard'-behaviour instead of tarmac.
Here is the link:
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EDIT:
I hope everybody knows how to intall it, if not:
0. Extract the download.
1. Make a backup of your original track.
2. Open the wad-file with EasyWad or anything like that. Open the maps/silverstone2001-folder.
3. Copy the downloaded col-file and paste it into the opened wad-folder.
4. Close the wad and insert it in your main-GP4-directory.
Enjoy.