Not that I know of. The readme directed me to the vehicle.meta.
From the Readme
CORRECT HANDLING
For install the vehicles, navigate to:
mods> update> x64> dlcpacks> -NAMEOFDLC-> dlc> common> data> levels> gta5> vehicles.meta
Once there, open and edit. Find the slot for the vehicles (for example, POLICE2) and edit the handling line to the correct name.
See the 'Generic Suggested Handling Lines' document for suggested handling lines.
If this fails to correct the handling, see the 'Correct Handling' instructions below, this should fix any issues.
I got it working now but my els sirens wont turn on. I can turn on the lights but cant find the button for the siren. Its probably ahotkey i need to change somewhere.