DETROIT — Last April, Ford Motor announced with fanfare that it would reintroduce its storied Lincoln Continental luxury sedan, with an eye on sales in the expanding Chinese market.

But now, as Ford prepares to put the Continental on the market, it faces a far different economic landscape.

While the car is expected to bolster Ford’s efforts to reinvigorate the Lincoln brand in the United States, its prospects in China are clouded by an upheaval in the stock market there and a general slowdown in auto sales.

At the unveiling of the production version of the Continental on Tuesday at the North American International Auto Show, Ford executives said they were undaunted by the economic troubles in China and were pressing ahead with their plans.