Cars

http://youtube.com/watch?v=fKGv7sLz6Ws (updated version)

How to make any car bullet/damage(car won't stop running)/explosion proof.

Its real simple, why this hasn't been found out until now is beyond me.

Step 1: Choose the car you wish to "proof"

Step 2: Go on a date (preferably a story mode date like Kate so you won't lose a perk).

Step 3: Pick her up.

Step 4: Scare her (attempt to fire a weapon while IN THE CAR).

CONGRATULATIONS!! YOUR CAR IS OFFICIALLY PROOFED!! SERIOUSLY!!

On the video, I jacked a car on the street to show you that I chose a "random" car and the effect came after I scared her.

Also note, I retried it with Kate and it does in-fact work, so try to do it with...