Audi of America's sales sizzled in June with total of 6,901 units for the month, another double-digit increase of 20.2 percent over June 1999 when sales were 5,742. June represents the sixth consecutive month in 2000 where the company posted year-over-year sales gains. Audi year-to-date sales increased 42.9 percent to 40,372 versus 28,252 vehicles sold during the first half of last year.