How to spawn on traffic add-on carse

[IMTxxL]

Hello

 

I have added new car look like ADD-ON on this repertory : update\x64\dlcpacks

 

I want this new car to be spawn naturaly on the traffic.

 

I know how to replace originals cars with "popgroups.ymt" but when i try to add this added car on the file the car is not spawn, the game doesn't know how to find the target in update\x64\dlcpacks

 

Exemple :

<Item>

<Name>VEH_RICH</Name>

<models>

<Item><Name>zentorno</Name><Variations type="NULL"/></Item> TO <Item><Name>mercedesf1</Name><Variations type="NULL"/></Item>

</models>

<flags>POPGROUP_AMBIENT POPGROUP_SCENARIO</flags>

</Item>

 

What file do i need to change?