Lexus will likely lose the title of top-selling premium brand in the United States this year, after production troubles caused by the Tsunami in Japan last March have plagued its deliveries.

The Lexus brand has been the biggest-selling luxury marque in the U.S. market for the last 11 years. But this year it seems likely to lose out to BMW or Mercedes-Benz.

For June, U.S. Sales fell 38 percent as dealers began running out of stock.

For the first six-months of 2011, Lexus sales were down 18 percent over the same period last year to 88,010 units. For the same period, BMW sales were 113,705 units, a rise of 13 percent compared to 2010. Mercedes-Benz sold 110,926 vehicles in the first half of 2011, a rise of 7 percent.

Lexus hopes to get back on track in 2012 after it gets production and delivery levels back to normal this year. But it still faces an uphill battle in reclaiming its title with an aging customer base and rivals producing more models that appeal to younger buyers.

Gallery: Lexus brand set to lose top spot in 2011 U.S. premium sales

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