General Motors brand GMC said it had the best year it’s posted since 2017 last year and announced its expansion to China, the world’s biggest automotive market, this year and to Australia and New Zealand in 2025.

GMC said its 2023 U.S. retail sales were up about 7%. It especially credited Sierra LD and HD models, which it said had their best sales year combined ever and six straight years of segment-share growth. It also tipped its hat to the Hummer EV, whose sales it said doubled year-over-year.

“GMC is in the most exciting era in its history as we expect to grow competitively in our home market while venturing into new ones,” said Duncan Aldred, global vice president of Buick and GMC. “We’re forging our future as a premium truck and SUV brand and our success shows our customers around the world are just as excited as we are for the road ahead.”

GMC said it also had sales increases in Canada, 10%, Mexico, 14%, and the Middle East, 15%.