Mercedes-Benz is selling almost as many Maybach cars in China each month as it used to sell worldwide in a year, when it targeted the super-rich with a stand-alone model.

Chinese buyers are snapping up about 500 a month of the ultra-luxury variant of the Mercedes S-Class, which starts at about 1.44 million yuan ($230,000) in China. That compares to a peak of 600 Maybach cars in 2003, which at the time cost more than $350,000.

“Sales in China are developing very well,” Ola Kaellenius, sales chief for the Daimler AG unit, said on Wednesday.

Daimler revived Maybach as a Mercedes sub-brand this year to chase the wealthiest buyers, people who otherwise might have considered a Rolls-Royce or a Bentley. The Mercedes-Maybach adds legroom and opulent options such as hand-made silver-plated champagne goblets to the standard S-Class.

The effort appears to be working. Mercedes started selling Maybach in China in February as part of a push to catch up with BMW and Audi in the world’s largest auto market, which is suffering a slowdown.

Mercedes sales rose 20 percent last month, driven not just by Maybach but also by its compact cars and sport utility vehicles. Audi, the bestselling upscale car brand in the country, posted its first sales decline in the country in more than two years.

“We’re very optimistic that we can sustain the sales momentum,” Daimler Chief Executive Officer Dieter Zetsche said on Wednesday at an event near Stuttgart, Germany.

‘Modern-Day Luminaries’

Zetsche needs strong growth in China to hit his goal of overtaking BMW and Audi in global sales by the end of the decade. China, the world’s biggest market for the S-Class, is also key for profit margins because of the high numbers of top- of-the-line vehicles sold there. Taxes and fees push up sticker prices, especially on imported vehicles like the Maybach.

Mercedes promotes the ultra-luxury nameplate in China as “the premier choice of China’s modern-day luminaries as they show their utmost respect to the world.”