5Mods

To use this .xml map you will need the Map Editor by Guardmaz https://www.gta5-mods.com/scripts/map-editor   
   
You will need to disable traffic with a trainer also found on this website.   
   
I have made a video of the track here at https://youtu.be/5KfTcoC8paM   
   
   
Copy mountaindrift.xml to your GTA V directory   
Once in game, open Map Editor with F7 and choose Load Map,   
Then choose load map and type 'mountaindrift' and press enter and within 30 seconds max it will be loaded it is only few objects so will not cause any problems with other maps i have not had problems loading it alongside other maps either

To use this .xml map you will need the Map Editor by Guardmaz /www.gta5-mods.com/scripts/map-editor

Great Chaparral Drift Map [MapEditor] 1.0

Sources

5Mods