What are the differences between the round (earlier V'gons) and the
rectangular headlights.  Which ones are better?  I have a complete late model
grill and headlights and was considering putting it on my '82 to replace the
round ones, but then someone told me that the round ones offer better
illumination.  Could someone clear this up for me.  I don't really prefer
either style, but would just be concerned with getting the best visibility
for my efforts.

Thanks
Stefan Weir