There is no doubt that the all-new 2011 Hyundai Sonata is a hugely important vehicle to the Korean automaker. Combining a swoopy new exterior with performance that rivals the best the midsize sedan segment has to offer, the all-new Sonata is out to increase market share in one of the hottest-contested classes in the U.S. Now, at the 2010 New York Auto Show, Hyundai has unveiled the requisite