As I say, thats all I did and it worked. Now that the new scripthook is out I had a bit of work to get my old mods working properly, but if you don't have that much installed then copying the new update.rpf accross will work fine.

I did nothing more than add the mptuner and patchday25ng lines to the dlclist in my mods folder.

Almost correct, you can skip step 2 entirely, you don't need the folders in your mods folder for them to work. As long as the mods dlclist has been updated they will work

I have simply replaced the GTAV.exe with my backed up version and have added the two new dlclist lines and its all working fine in my SP game now. Only thing missing is the wheels because the Track section doesn't exist in trainers yet

Have patience. Its usually around a week for the updated version to drop, depending on how much in the game has been changed.

likely your graphics settings then. ENB relies on DirectX 11 and high/ultra graphics to work properly

Depth of Field and one other option, I forget which return to 'false' on game launch regardless of what the settings looked like when you save them. All other settings are retained when you press save at the top of the menu

Simply looking at another vehicles meta files will be a massive help.

In short, for a working modkit, you need to define a modkit name in the carvariations.meta, which must be matched in the carcols.meta, and a valid modkit ID (<1024) used.

From there its just a case of adding the parts as xml <Item>'s, again, you're best looking at an existing vehicle to get an idea of how it works.

This Mod changes the signage for LSC. That will quickly point you to the correct file paths.

In my experience with FiveM at least, all mods are server side, and streamed to the clients. You need to contact the server owners to find out what is installed