The 2011 Hyundai Sonata comes from the vehicle's sixth generation and marks a significant upgrade in design and technology. It provides four trims—GLS, SE, Limited, and Hybrid. It carries a 2.4-liter four-cylinder engine giving 198 horsepower and the 2.0-liter turbo four-cylinder engine, providing 274 horsepower. The Sonata is equipped with a six-speed automatic transmission with FWD drivetrain boasting fuel efficiency. The standard infotainment supports Bluetooth and XM Satellite Radio. Safety features on the 2011 Sonata include six airbags, electronic stability control, and anti-lock brakes. The introduction of the Hybrid model this year was the notable change. The Sonata Hybrid comes with a new lithium polymer battery pack, promising better mileage and longer life.