I've only played a couple of Twisted Metal's levels on Story mode, including the NYC Electric Cage Match.
I found the match more than a bit frustrating, as I sometimes burned quite a bit of my grace period just trying to find the next Cage.
Do the cages always spawn in the same spots, in the same order, so once I learn the pattern I will be able to minimize how much grace time I will burn up by planning my routes? Or are they random?