If you have a 20-year-old car and you live in the middle of Paris, don?t expect to drive it to work?or anywhere inside Paris?s Périphérique loop road?on weekdays starting on July 1, 2016. As the next round of aggressive anti-pollution measures adopted one year ago by the city of Paris are phased in, passenger cars built before 1997 as well as motorized two-wheelers built before 1999 will be banned from driving in the city from 8 a.m. until 8 p.m. on weekdays (holidays not included). Paris follows the lead of Berlin, which enacted similar measures five years ago, and other European cities, with more expected to follow suit. These measures, spearheaded by Paris mayor Anne Hidalgo, also include the  creation of certain zones reserved for electric or hydrogen-powered vehicles. Drivers wishing to motor around in the city in any car must display a chip or sticker in the windshield of their vehicles that indicate which of six emissions categories it fits into. This in turn allows authorities to know when and where those vehicles are allowed to be driven. Top-tier Class 1 stickers will be doled out for hydrogen- or electric-powered vehicles, whereas cars built before 1997, as well as older large vehicles?including utility vehicles and buses, according to the report?will not be given a sticker at all, and thus will be the first ones to be banned; bans of other classes of vehicles are expected to be phased in during the next few years, with vehicles older than 2011 and all...