Random Thought: Hydrogen Fuel Cell Cars

Hydrogen Fuel cars react Hydrogen with Oxygen to produce energy to drive the car, with the only exhaust product being water. These cars are expected to come into use in the next twenty years.

If every car is pumping out water vapour does this mean we will be driving around in a permanent fog?

Will the extra water vapour end up forming more clouds and increasing the amount of rainfall in the area? Will places like London have a permanent drizzle?

Surely that amount of water vapour must do something?