[Secret Agent Man]

Until some smart guy takes the water exhaust and puts it in a collection container marked “survival water” so if you ever get stranded, you’ve got potable water in the car.

[backwoods-engineer]

Until some smart guy takes the water exhaust and puts it in a collection container marked “survival water” so if you ever get stranded, you’ve got potable water in the car.

The Apollo astronauts drank the output from their on-board fuel cells. Nothing wrong with fuel cells. They just can't compete joule-for-joule against a heat engine powered by a real fuel.