This guide will help you on how to install Custom Cars to your server.
To upload a modded car you have to do the following:
Go to your control panel, click at your server, and then click at FTP Then Click at content and then Cars.
Make a new folder inside cars with the exact name of the modded car.
If it exists, upload the data.acd file from the modded car to the directory that was just created on the server. (e.g. \content\cars\car_name\)
If the modded car has a data folder, then upload this folder inside the folder we've previously created for the modded car. (e.g. \content\cars\car_name\data)
Alternatively you can create the folder and upload the files with an FTP client (e.g. Filezilla) if you prefer.
Note: If the car doesn't have a data.acd file and doesn't have a data directory then the server doesn't need any files to use the modded car.
To configure the car:
In the control panel click on Configuration files, then open cfg\server_cfg.ini.
Add the car name to the line "CARS=", you can enter multiple cars by separating them with a semicolon (;)
Save the file
In the control panel click on Configuration files, then open cfg\entry_list.ini
Now add the car to entry_list positions so that players can select the car when joining the server.
Restart the server to apply the changes.