Originally Posted by Byzantium
Because the stock tail lights are not bright enough?
This is going to be the next useless Hella Supertone-esque mod isn't it.
Actually you're correct, the stock tails might not be bright enough in really bad weather. Why do you think these are OEM options in other countries? And the rear fog operates at the same brightness of the brake lights, not the brightness of the running tail lights.
I used my rear fog on my crazy drive home from Delaware yesterday where they were getting blizzard conditions. It definitely comes in handy.