MONTVALE, N.J. - Mercedes-Benz USA (MBUSA) today reported June sales of 22,563 vehicles, an 18.8 % improvement over June 2010, and the company's highest June volume and first half of the year on record. On a year-to-date basis, the 118,021 vehicles sold represent a 10.4% increase.

The highest volume performers for the month were the E- and C-Class model lines. The 9th generation E-Class led the pack with sales of 5…