Chrysler Group LLC Reports December 2010 U.S. Sales Increased 16 Percent Chrysler Group sales in 2010 reach 1.1 million units in the U.S. Chrysler Group sales for the year up 17 percent compared with 2009 December marks the ninth consecutive month of year-over-year sales increases Chrysler Group launched 16 all-new or significantly refreshed vehicles during 2010, representing 75 percent of its nameplates Jeep® Grand Cherokee sales up 211 percent over December 2009 Ram pickup sales up 93 p