5Mods

Credits   
The car model is from the game : Forza Horizon 5   
Converted by : kritbualad   
   
Open GTA V game folder.   
   
mg32015 folder, drag it to mods > update > x64 > dlcpacks   
   
Open dlclist.xml   
   
Open OpenIV, select GTA V.   
go to mods > update > update.rpf > common > data   
   
Open "Edit Mode" and press "Yes", then select "dlclist.xml", right click and press "Edit".   
   
dlcpacks:/mg32015/   
   
and press "Save"   
   
Spawn Name : mg32015   
   
Enjoy!!!   
   
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Optional   
   
Open the "Livery" folder and select the design you want. If you like it, open OpenIV and   
go to mods > update > x64 > dlcpacks > mg32015 > dlc.rpf > x64 > levels > gta5 > vehicles > vehicles.rpf   
   
Double-click "mg32015.ytd" Select the name "CustomLivery". Then press replace. Choose design you want and press "Save".

The car model is from the game  Forza Horizon 5

2015 MG MG3 [Add-On | LHD | Template | Livery | Extra] 1.0

Sources

5Mods