Requirements:
Garage with Drive In/Out Animation
Adder or any car that sells alot (More upgrades u have the bigger the reward)
Pegasus (Stretch works best)
You have to be in a Invite only session by yourself!!!

Tutorial:
1. Call pegasus and order the stretch.
2. Go into your garage and pull out a car u dont want to use for this glitch.
3. Get the stretch and park it in the middle of your garage door.
4. Get out and go into the garage and pull out an expensive car for me i use the adder (When going into the garage the door should not move/open)
5. Now it should spawn u down the road a bit just get out of the car to check if i has a tracker on it if so just leave and go into another invite only session if it dont have a tracker on it then ur good.
6. Go into your browser on your phone and buy the Karin Rebel.
7. Drive to los santos customs and put the 2 front wheels inside los santos customs.
8. Call your mechanic and highlight the rebel u bought in step 6 and right when u press X (PS3) A (XBOX) drive into los santos customs and quickly select sell (helps if u banged your ride up a bit) and wait for a orange circle to pop up then sell it.
9. Once out just call mors mutal insurance and u should see the adder.