FOUNTAIN VALLEY, CALIF., Oct. 4, 2010 - Hyundai Motor America debuted its 2.0-liter Theta II turbocharged gasoline direct-injection (GDI) engine in the 2011 Sonata at the New York Auto Show today. With the addition of the all-new 2.0-liter Theta II turbocharged GDI engine, the new 2011 Sonata offers an unprecedented combination of segment-leading fuel efficiency and power – with a 33 mpg highway rating, and 274 horsepower. Remarkably, the Sonata 2.0T produces these industry-leading metrics on regular fuel…premium fuel is not required.