I saw this Volt parked in Southfield today. A lovely dark red specimin.
Notice how GM is hiding the exhaust. Can you see a tailpipe? The muffler is that light gray thing on the left side. I can't tell where the tail pipe exits, it is well hidden. I'm not sure about the wisdom of the reverse lamp location, it seems like it would get grimy under there from road grime during the winter months.