For 2012, Hyundai has refreshed the Genesis with a few enhancements while adding a new edition: the 5.0 R-SPEC. Early adopters to Hyundai’s new revolution now have a choice between the 3.6-liter V6 (333 horsepower), the 4.8-liter V8 (385 horsepower using premium fuel) and now the upper echelon 5.0-liter V8 with 429 horsepower and 376 lb-ft of torque of which 300 or so is available at 1,500 rpm. Its 0-60 mph time is rated at 5.1 seconds.