why single fog light on the new Scion? does any body know why?

That is not a fog light on the rear bumper. It is the reverse light for when you're backing up. Most new vehicles only have one reverse light now a days.

thats not a fog light.....thats what signals drivers when you are backing up. and who knows why they only put one....saving on lightbulbs?

Most cars in Japan and Europe do have a single reverse light and one rear facing fog light.

That is a backup light, not a fog light.

It only needs one light. They did it just to be different from other cars.