@MegaDeveloper STEPS:

1. Create New Folder inside --------> update/x64/dlcpacks
2. Rename the new folder to "vans123" without the "
3. Extract "dlc.rpf" file included in this rar to this new vans123 folder
4. Replace "dlclist.xml" file inside ---------> update/update.rpf/common/data
   NOTE: IF YOU DONT HAVE THE LATEST PATCH THIS FILE WONT BE USEFUL FOR YOU, HERE IS WHAT YOU NEED TO DO
   4a) Extract "dlclist.xml" file from -------> update/update.rpf/common/data
   4b) Open it with notepad and add this line "<Item>dlcpacks:\vans123</Item>" without the "
   4c) Save changes and replace the old "dlclist.xml" from -----> update/update.rpf/common data

This mod has the exact same process for each of its car addons

Starting this adding cars to my game thing today, I've got a few cars installed however im not sure how to install cars that were made by the same person? as the tutorial remains the same of;

1. Create a folder with "xxx" name
   But if I did that wouldn't it detect its the same as a folder I've already got. So im wondering if I can have different cars made by the same person or not.