Buick Regal
Unfortunately, the 2000s were only good for some long-lasting American brands. Oldsmobile, Mercury, Plymouth, and Pontiac disappeared and Buick was also on the brink of extinction. But instead of ceasing production, General Motors choose a different path for the struggling brand. Hungry for new cars, the Chinese market got Buick. The best-selling model was the Regal. In honesty, the Regal was nothing more than just a rebadged Opel Insignia, a European mid-size sedan (via Autoblog).
But with Buick badges and the power of advertising, the Regal worked well in the Chinese market, where it sold more than 100,000 copies in 2014 and 2015. With the fifth generation Regal, General Motors attracted new customers, especially younger buyers, and a majority of them had yet to have a prior GM history.