acquired by General Motors in 1918. In January 1918, Oshawa became the first Canadian GM plant to minimize the issue of large scale layoffs by cutting the second shift and alternating day- and night-shift workers at two-week intervals. This system was later adopted at other plants around the continent. From its beginnings, the Oshawa plant supplied right-hand-drive vehicles to international markets in kit form for local assembly, or as completed vehicles until the late 1960s. International markets saw U.S and Canadian-only GM vehicles such as the Bel Air, Pontiac Parisienne, Pontiac Laurentian, and Chevrolet Impala. In the mid-1980s, GM began a large transformation of the facility, naming the site "Autoplex." The changeover came in three steps, the first being conversion of the truck plant to GMT400 production in 1986. The next step was retooling Line 2 for the new W-body Regal, which began production in mid-1987. The final installment was a long changeover of Line 1 for the Chevrolet Lumina, which went into production on January 8, 1989 as a 1990 model. The Chevrolet Monte Carlo and Pontiac Grand Prix were discontinued in June and November 2007 respectively. The Buick LaCrosse was discontinued from Oshawa #2 in 2008 and moved to Fairfax Assembly for 2009. In the fourth quarter of that year, it began producing the new Chevrolet Camaro. Both the Buick Regal and the Camaro Convertible launched on the Flex Line in the first quarter of 2011. The plant began the production of high performance 2012 Camaro ZL1 and the 2012 Buick Regal GS in 2012 and will build the 2013 Cadillac XTS in the first quarter of 2012. In August 2010, the plant began assembling the Chevrolet Equinox in partnership with another GM facility in Ingersoll, Ontario, known as CAMI Automotive. The metal bodies are made at CAMI, trucked two hours east to Oshawa, where they are inserted on the conveyor just before the paint shop. The bodies are painted and then go through the general assembly process at the Oshawa plant. The entire process was developed as a quick way to respond to high demand for the Equinox product. The CAMI facility does make Equinox and GMC Terrain from start to finish at their own plant, but they did not have the capacity to put more bodies through paint and general assembly. In mid 2018, it was announced that the previous generation of the Chevrolet Silverado 1500