You would if you've ever been trapped behind one at a red light. One study found that these tiny vehicles generate amounts of pollution "several orders of magnitude higher than the limit values admissible in Europe and the USA." As the study authors put it, "Waiting behind a moped in traffic may, therefore, constitute a considerable health risk." Not good.

To help rush-hour victims breathe easier, Dutch designer Ronald Meijs has created the Motorman, an electric "moped" that's become the fashionable green machine for daily commuters throughout Europe. Motormans have been spotted on the cobbled streets of Amsterdam, Ibiza, Düsseldorf, Maastricht, Zurich, and Brussels; enough E.U. cities to fill a Jason Bourne itinerary.