Hyundai's well-received Genesis Coupe is entering the 2011 model year in the U.S. with some minor interior refinements, and most importantly, a new hotter model called the "3.8 R-Spec".Previously available only in conjunction with the 210HP 2.0-liter turbocharged four-cylinder engine, the R-Spec trim level can now be ordered with the 3.8-liter V6 engine that delivers 306-horsepower and 266 lb.-ft