Ok. I tested something to fix it. (Tow service, Insuarance etc are fully working.)
It is the log,
I think the game lost the speedo(coroner vehicle) vehicle file.
Other thing is working, but only coroner is broken.
When I tried to spawn a speedo by a trainer, and It said 'invaild model'.
I thought I can fix this by installing the vehicle file, So I downloaded the speedo skin on LSPDFR and insert it in the mods\update\x64\dlcpacks\patchday20ng\dlc.rpf\x64\levels\gta5\vehicles.rpf\ (OPENIV)
And... it is not working.
++ And I made a something different, I changed a coroner vehicle setting in my ultimate backup file, (Speedo -> Rumpo) It is working. But I want my speedo back.
So, Should I get an original vehicle file of speedo and put it in my game folder?
I am trying one last time before doing a full reinstall of the game.
Reinstall the entire GTA V is kinda harsh. TT