First Sgt. William von Zehle bought a loaded Mercedes Benz while serving in Iraq, and its accessories make him wonder about the previous owner. The Mercedes Benz 560 has armor plating, bulletproof glass, microphones and a "crowd-control device" that consists of a series of pipes that shoot out flames from the side of the car. "I guess it was to make sure nobody got too close," said von Zehle, a Wilton firefighter. "One of the neat things, aside from the fact it's armored, is it has microphones that allow you to hear people talking outside the car and loudspeakers so...