This was a panning shot, so I really only caught a glimpse of them as they drove by. I was amazed at the facility with which people sail through stone-covered, uneven streets. But with petrol prices being what they are, I imagine the Romans have little choice. The amber tint is the actual color generated by the street lamps, which complement the nearby ancient sites. The street was pretty dark, so I shot this at ISO 6400, 1/125 sec. at f/4.