How to get under the map in GTA IV

A Grand Theft Auto 4 (GTA IV) glitch tutorial.

Can be done on single and multiplayer mode. It is easier to do on the single player but on the multiplayer, make sure the left door is open and the right one closed. Then ram your car on the open part and if done right, the container will start to spazz out and then all you need to do is walk inside.

Sometimes it will shoot your guy up in the air, sometimes really really high and sometime not too high. But I find it that if you crouch and walk in, you will fall under the map.