the evenings. Two-car trains only operate during train maintenance and testing at the BCRTC Edmonds Maintenance and Storage Facility in Burnaby. In 2013, the oldest 114 Mark I cars began being refurbished to extend their intended lifespan another fifteen years, from 2011 to 2026. The refurbishment included an interior and exterior repainting (in the current blue–grey TransLink livery), removal of seats to increase capacity, and the replacement of various systems. , these original cars were all repainted, but not all refurbished. The project, which would ultimately see all Mark I cars updated, was expected to be finished in April 2020. , leading up to the opening of the Evergreen Extension on December 2, Mark I trains no longer mainly operate as four-car trains; they commonly operate in a six-car configuration (though four-car formations do occasionally appear should there be additional cars in maintenance). Bombardier ART Mark II When the Millennium Line was built, TransLink ordered new-generation Mark II ART trains from Bombardier Transportation, 50 of which were manufactured in a Burnaby factory. Similar trains are used in Kuala Lumpur's Kelana Jaya Line, New York's JFK AirTrain, and the Beijing Airport Express. These trains are usually seen in two-car and four-car configurations. Each pair of cars is permanently joined together in a twin unit or "married pair", with a length of . Mark II trains have a streamlined front and rear, an articulated joint allowing passengers to walk the length of a married pair, white/grey/blue interiors, and three doors per car. Like Mark I trains, Mark II vehicles are fully accessible, with dedicated spaces for wheelchair users, strollers, and bicycles. The first-generation Mark II vehicles each have 41 seats and a capacity of 130 passengers, although trains have carried up to 150 passengers under crush load. There were 60 Mark II cars added in 2002 for the Millennium Line and ridership growth on the Expo Line. In November 2006, Bombardier won a contract to supply a further 34 second-generation ART Mark II cars with a bid of $113 million. The second-generation Mark II vehicles have fewer seats and wider aisles than their first-generation counterparts, providing more space for standees, wheelchairs, strollers, and bicycles; they have 33 seats and a total capacity of 145 passengers. The second-generation Mark II trains also feature interactive LED maps, destination boards in the front and back windows of the train, more handlebars, door indicator lights, and