March 20, 2009 10:30 am Mercedes Packs a Desirable Diesel Engine Mercedes-Benz is once again offering diesel engines in America. Check out the ups and downs of the new ML320 SUV. US & World Videos 2:03 Does Shakira still believe in love following Gerard Piqué split? 1:36 O.J. Simpson's cause of death revealed 25:57 WATCH: ‘Changing Climate' highlights the Philly-area residents who are combatting climate change 2:36 Super dad makes Mario-themed obstacle course for son's birthday 4:17 How the Philadelphia Union became the sustainability champs of the MLS