Just tried another pack and get similar bugged out textures. Only on the sheriff2 car though 🤔
UPDATE & FIX … so did some digging for a good few hours to try find a resolve for this and have found it on a very old post. Looks like World of virety is the culprit and the random textures for "Sheriff2" in there. Please see @Officer Segar's reply on a old post below. This has fixed it for me and will leave it here also encase someone else has the same issue. Thank you @Officer Segar for the fix 👍
"I know this is late, but for some of you who currently have this problem;
You have World of Variety installed, which puts in more vehicles texture files in this case its sheriff2. Navigate to mods > update > x64 > dlcpacks > wov > dlc.rpf > x64 > levels > gta5 > vehicles > wovvehicles.rpf. And delete the sheriff2 ytd files."