This is the preferred method for most players as it adds the car as a completely new vehicle without replacing any original game files.
: Add a new line for your vehicle (e.g., dlcpacks:\tchcop\ ) and save.
: Go to update.rpf/common/data/ and edit the dlclist.xml .
Ideal if you want to see the 2020 Corolla driving around as part of the standard Los Santos traffic.
Upgrade Your Virtual Ride: 2020 Toyota Corolla GTA 5 Mod Guide
Navigate to the vehicle RPF file in OpenIV (typically mods/update/x64/dlcpacks/patchday22ng/dlc.rpf/x64/levels/gta5/vehicles.rpf/ ).