Two optional Lexicon-branded audio systems offer 7.1 channels and 14 or 17 speakers. For the 2008–09 model years, the 4.6 L engine produced 375 horsepower (280 k W) at 6,500 rpm and 333 lb⋅ft (451 N⋅m) at 3,500 rpm. The V8 can also run on regular unleaded, in which case the 2010–11 model produces 378 horsepower (282 k W) and 324 lb-ft.For the V8 model, Hyundai has reported 0–60 mph times of less than 6 seconds.Genesis 5.0 R-Spec includes Genesis 4.6 equipment, plus 19-inch Premium Machined Finish alloy wheels with P235/45R19 tires, Unique headlamps w/dark chrome inserts, Sport-tuned suspension calibration, Unique R-Spec embroidered floor mats, R-Spec rear deck lid badging, deleted Woodgrain from leather steering wheel.The last changes to US models before the new generation was introduced included greater connectivity options via the Hyundai Blue Link interface, some revised controls, a new exterior body colour (Santiago Silver instead of Platinum Metallic), 18-inch wheels as standard on the base model, and Hyundai’'s Assurance Connected Care telematics services are standard for three years on all 2014 Genesis sedans equipped with Blue Link.Early models include a choice of four engines (Lambda 3.0 GDi, Lambda 3.3 GDi, Lambda 3.8 GDi, Tau 5.0 GDi), rear or all-wheel-drive.All models include eight-speed automatic transmission with manual shift mode and a five star safety rating.
Canadian models include choice of 3.8 Lambda GDi, 5.0 Tau GDi (R-Spec only) engines.
Hyundai has been criticised by Korean consumers over the price discrepancy between the US and Korean markets.
Yonhap reports the Genesis costs "₩58.3 million (US,000) in Korea, whereas in the U. it sells for ,000." This has led to dumping allegations The Genesis sedan went on sale in the US in August 2008.
The body design took three years and the total cost of the program was 0 million over a development period of 23 months. Hyundai reportedly benchmarked the BMW 5 Series (E60) sedan during the Genesis' development; the company's press release indicates the Genesis body in white exceeds the BMW in torsional rigidity by 14%.
The first generation was marketed worldwide except in the European market.