BMW's U.S. factory is on track to become the automaker's largest -- passing its plant in Dingolfing, Germany -- with the addition of the X7.
On Friday, BMW outlined plans to build the seven-seat crossover in Spartanburg, South Carolina, and expand annual capacity to 450,000 units.
"This expansion means Spartanburg will have the largest production capacity of any plant in our global production network," BMW CEO Nortbert Reithofer said in a statement.
BMW's Dingolfing plant was the automaker's largest producer last year with a volume of 342,600 models such as the 5-, 6- and 7-series sedans. Spartanburg ranked second in BMW's global network with a 2013 volume of 297,300 crossovers such as the X3, X5 and X6.
BMW sales boss Ian Robertson told Automotive News Europe in January that Spartanburg already was on track to become the company's largest plant because of this year's addition of the X4 crossover.
Since producing its first car 20 years ago, the Spartanburg factory has been expanded to rank as the industry's biggest producer of vehicles exported from North America, according to BMW.