China has recently become one of GM's key markets, mainly on the strength of the Buick marque. They build various models there under the Buick badge, some of which are similar to US models, and some of which are marketed in other parts of the world under other names in the GM stable.
Durant's story is almost as curious and interesting as Henry Ford's. After founding GM, Durant lost control of it to the moneymen; went off on his own and founded Chevrolet; fought his way back into the head position of GM bringing Chevy with him; got ousted again; retired from the auto business; owned and operated a bowling alley in Detroit for many years; then died in 1947 within weeks of Henry Ford.