03-12-2012, 07:24 PM
Engine blocks and to a lesser degree undercarriage/tire rims. Unless they specifically add armor, car-doors are worthless. I will say that weird things can happen. Personal experience: On a live-fire ex many, many years ago, my LEO was training In-Service at our academy and running us through a canned exercise using an old junker patrol-car that had been towed out onto the range. During the shoot we were to engage targets with our pistol from the driver's seat then retrieve the AR15 from the trunk (yes, this is where it used to be carried back then). From the open trunk, using the rear quarter-panel for "cover" we were to engage a few more targets. Silly me, I was a little too hunkered down behind my cover and the muzzle wasn't clearing the top edge of the trunk rim. I put three rounds of M193 55-grain FMJ into the upper edge of that car body at a range of about 3 inches and they did not penetrate all the way through. They went in, but never came out. It had to have been how the sheet metal was folded just right at that spot.