prove me wrong,

in automatic, the transmission dis-engages right when the motor shuts off and it doesn't suck in enough water to cause damage.

but in manual, (unless you put it in to neutral) it will suck in water and i cannot describe after that. ur valves will bend and ur motor will start knocking.

my car (automatic) sucked in water twice both time i couldn't do anything about because of my speed. i couldn't change my lane.
my motor still runs perfectly fine w/o a single knocking sound.