I added a file that gives a small handful of weapon hashes that can be used for vehicle weapons, all of them I had proven works well with armed vehicles.

Now you can see how to add weapons to vehicles, but ONLY if the vehicle model supports vehicle weapons. I added more things in the ta and ta files. I hope this provides a decent amount of useful information, like making ANY car have sirens and such. Weapon Hash List for Vehicle/Reward Weapons Vehicle Name/Hashes for Audio/Other Entries Here is a list of websites that will help you find other bits of info on modifying cars:

This is the example file with all the information/instructions: I have a file that contains some basic instructions on how to do this, and also contains instructions on how to modify your car. Also this is a good way to make your car customizable, so you can make any edits you want to it, whether you want to make a super tank jeep that’s indestructible… Or you want to make your SUV stop tipping over by editing its handling entry. This is a good choice for people who wish to keep all the original cars of the game while having their favorite cars installed. This will teach you how to make ANY car into an add-on car, regardless if it was supposed to replace a car or not.