Rear Fog Lights (was Rear Lights)

["Tom Forhan" <TFORHAN@hr.house.gov>]

     While we are on the subject, just what is that switch on my dash
     supposed to do? I know European spec cars are required to have these
     to reduce the risk of rear ending in low
     visibility...but what are they - brighter red (running) lights?
     I see no difference at night - are they just for daytime use (never
     looked at them in daylight with the switch on...) or did US spec cars
     get the switch but no groovy lights, thanks to the DOT?

     Tom F.
     90 200 TQW IA Stage I
     90 Syncro Westie