Destroyed vehicles glitch

To get inside of destroyed vehicles, you will need a Spartan Laser. First, approach a vehicle (preferably a Warthog) and stand next to it (your body must be touching the vehicle). Press RT (Right Trigger), then B to enter/ride/drive on top. Next, charge the Spartan Laser and just as you fire, enter the vehicle. Note that you cannot drive the vehicle.

Another way to get inside a destroyed vehicle is to have someone damage the vehicle with a frag grenade or two until it is at the point in which it will blow up if you stick someone with a plasma grenade who gets in it. Once you stick them, have them get in the vehicle as fast as they can. You would then board the vehicle. The resulting plasma grenade explosion will destroy the vehicle. You should be in it.

NOTE: This has only been confirmed to work with the Banshee and Ghost. You will eventually respawn due to the game thinking that you committed suicide. It should also be noted that many have destroyed a Banshee on the river in Valhalla and that the person inside will float downstream, creating a raft-like experience.