Porsche AG warned of a tough road ahead for sales this year after a slowdown in the lucrative US market and persistent weakness in China.

Figures for January to June show Porsche’s worldwide sales fell 6 percent to 146,400 and China, where deliveries dropped to 21,300, wasn’t the only region that struggled to su

German luxury sports carmaker Porsche said on Tuesday its sales fell in the first half of the year, blaming challenging market conditions and intense competition for a 28% slump in the Chinese market.