Here is my 100% Save file for Android which has ALL special vehicles of the entire game!

The cars are placed as following:

Sunshine Autos:
- Blue PCJ-600
- Silver PCJ-600
- BP/FP/EP PCJ-600
- Black Sanchez
- Roofless Bloodring Banger 1
- Roofless Bloodring Banger 2
- FP Romero's Hearse
- Romero's Hearse
- Mettalic Black/Red Bobcat
- Spand Express
- Black Rancher
- Black Voodoo
- Black Sentinel
- Black Admiral
- Black Washington
- Black Pony

Hyman Condo:
- Shady Blue Maverick
- Lightless Cabbie
- Lightless Taxi
- Lightless Kaufman Cab
- Silver Stretch
- Golden Stretch
- White Walton
- Secondary Grey Color Patriot
- Snowwhite Admiral

Vercetti Estate:
- BP/FP/EP Sabre Turbo
-AP Admiral 2x

Ocean Heights:
- FP Cheetah

El Swanko Casa:
- FP Infernus

Mercedes' Safehouse:
- FP Stinger

These are currently all the vehicles in the game that are obtainable (of my knowledge)
I heard about these vehicles but there are no tutorials on how to get them so i am trying to figure out:
- Lightless Zebra Cab
- Loadless Packer

The save file also has the following additions:
- 1.3 Million dollar. Will do Vigilante for more in the future
- Sunshine Autos completed so the Hotring Racer will spawn there

And for the people who don't know what it means:
BP=Bulletproof, doesn't get damaged by bullets
FP=Fireproof, doesn't get damaged from fire
EP=Explosionproof, doesn't get damaged by explosions
DP=Damageproof, doesn't get damages from crashing
AP=BP/FP/EP/DP at the same time, can't get destroyed other than getting flipped, or hit by tank

Edit: May not work on iOS!