With just one month to go, BMW is zeroing in on Mercedes luxury sales lead.

The United States' luxury car sales race will come down to the final month of the year as BMW was able to trim Mercedes-Benz' already narrow lead with a strong month of November sales.

Thanks to a 64 percent increase in demand for the company's 5-Series model, BMW's November sales shot up 45 percent to 31,213 vehicles. Mercedes' U.S. sales, meanwhile, increased 13 percent to 30,315 units in November, helped by a 59 percent sales spike of its E-Class sedan.

For the year, BMW's sales stand at 244,061 units, trailing Mercedes-Benz' 245,910 sales by just 1,849 vehicles.

Last year BMW slipped by Mercedes-Benz for the U.S. sales title, outselling its cross-country rival 247,907 to 245,192. Both brands finished ahead of Toyota's Lexus brand, which had been the country's best-selling luxury brand for the previous 11 years.

Lexus' sales have increased 23 percent this year, but its 213,559 total sales are nowhere close to its German rivals.