2 Different Issues right here:
First things first, i'm getting huge texture loss (mostly after loading in on duty).
Right now i only have a bunch of vehicles installed, and only a few plugins. Following plugins i have installed only:
EUP-menu
StopThePed
UltimateBackup
That's it, and a bunch of emergency vehicles...
Another thing is, that i'm not able to spawn the car i've replaced in the "Sheriff" slot. i've reinstalled the same vehicle one, and nothing's happening