Car Pack from DLC "Executives and Other Criminals"
Installation:

1.Place mpapartment in update/x64/dlcpacks

2.Place mpapartment from dlc_patch folder in update/update.rpf/dlc_patch

3.Go to update/update.rpf/common/data and edit dlclist and extratitleupdatedata and add lines
"<Item>dlcpacks:\mpapartment\</Item>" 
in dlclist.xml &

"<Item type="SExtraTitleUpdateMount">
			<deviceName>dlc_mpApartment:/</deviceName>
			<path>update:/dlc_patch/mpApartment/</path>
		</Item>" 
in extratitleupdatedata.Without quotations!

4.Put handling.meta in update/update.rpf/common/data

5.Put gameconfig.xml in update/update.rpf/common/data

6.Cars should spawn even regularly but you can specifically spawn by name or through trainer:https://www.gta5-mods.com/scripts/gta-5-pc-mod-ohmymodz-essential-v1-mod-menu-trainer-lua

7.de voila! Enjoy!

Changelog:
1.01 Improved Handling
(Place handling.meta in update/x64/dlcpacks/mpapartment/dlc.rpf/common/data)

1.02 Minor Bug Fixes

1.03 Minor Tweaks

1.04 Major Bug Fix

Next Mod(Soon):Aventador LP700 [Add-On]

If you wish,you can gift me a game on steam!(GTA V would be awesome) Paypal does not operate in my country! :'( 
It would help and encourage me a lot! 
Thanks!