Installation: First install LuaLoader. To do this, go here - https://github.com/egor230/lualoader Install the latest version of the plugin for the particular job. Then download plugin.VC and place it in the root of the game, and misson race.lua and mod.lua in the lualoader folder, which you need to create in the root folder of the game.
To start the mission, you need to come to the marker "B" and stand on it while in the car. This is the Race mission.
Video:
By pressing ”Ctrl” you can reload the scripts. Why this is needed, see here: