There was no way that was a magnesium transmission case. Not even close to enough energy release. Maybe the battery popped or something, I don't know, but definitely not a transmission case.
It's really, really hard to ignite a large block of magnesium in a normal fire. Powder, yes, like the flash bulb and road flares people are using as example, but not a solid chunk of mg. Not enough surface area, too much thermal conductance.
Sheet metal, eh, maybe. I wouldn't worry about it though. If you're still in the car by the time the magnesium ignites you're already dead as a doornail.
Originally Posted by SCRAPPYDO
fast forward to about the 1 minute mark when the magnesium transmission case gets hit with the water...