Original Mercedes wheels and rims spawn with car when you first spawn it. you can later change ,
wheels , rims window tint, vehicle paint etc via trainer menu Installation insturctoins below :)

=================================================Installation=======================================================================================================================

A) [Add on Method]

1. Extract "dlclist.xml" with openIV from -----> \update\update.rpf\common\data
2. Open it in text editor like notepad, for example
3. Add new line "<Item>dlcpacks:\gl450\</Item>" to dlclist.xml
3. Save, and replace the old one at ------> mods\update\update.rpf\common\data
4. Extract all files in "ADD-on" folder included in this download into -----> mods\update\x64\dlcpacks\

it should look like this mods\update\x64\dlcpacks\gl450\dlc.rpf


=========SPAWNING THE NEW ADDED Vehicle=========

I recommend you to use Enhanced Native Trainer or Simple Trainer, etc with "spawn car by name" function.
Select this function and input the car name to spawn it

type this name in the spawn type window: gl450

B) [Replace Method]

1, Just Drag and Drop 3 files named gresley,ytd, gresley.yft & gresley_hi.yft from Replace folder into this following location ,

\Grand Theft Auto V\mods\update\x64\dlcpacks\patchday3ng\dlc.rpf\x64\levels\gta5\vehicles.rpf\


2, Spawn as you would normally spawn Gresley Vehicle by typing name: gresley