I found a cool little glitch while I was messing around on Crash. Go up to a car and crouch next to its top left or right side window so your facing into it. Next take out your throwing knife and aim the reticule so it goes through the first window somewhat in the middle, but (this is the important part) aim it so that the throwing knife just below the top frame of the car on the other window. If you do it right when the throw the knife it will break the first window but just go through the second one without breaking it!
If someone can get a picture of you crouching looking in I can draw where to throw it.