1974 Dodge Monaco (AKA The Bluesmobile) dff only mod for the Las Venturas Police Department. Original author is Dmitrii_Mods. Ported to Android by Los Santos guy.
I've included two methods for installing this mod:

The simple method. (dff only) The only thing you have to do is replace copcarvg.dff with Img Tool Android
and move the file called 'txd' to Android/data/com.rockstargames.gtasa/files/texdb. This is a primitive
method. Because it's possible that you already have a file called 'txd' installed for another mod.

The Txd Tool (Android) method. (This method is the best) You have to import 'copcarvg.txd' to 'txd.txt' with Txd Tool.
(And of course replace copcarvg.dff with Img Tool Android)
I've made a tutorial on how to use Txd Tool: https://youtu.be/JNneVjkbxJM
Good luck and enjoy!