All installed modded cars are default white? Some Normal cop cars are just also plain white?

[cmd9292]

I installed a car mod the other day and after I installed it through Open IV I noticed some police cars were default white. For example the normal FIB Jeep is white instead of black(looks kinda cool)

Question is - How do I fix this? Something to do with vehicle meta perhaps? I deleted the car mod I thought was the issue also verified my game incase files were missing but no fix

I've added more cars in recently and everyone is white instead of the colour it should be

Thanks!