The 2011 Sonata Hybrid is Hyundai’s first hybrid in the U.S. market. Hyundai Hybrid Blue Drive is the first and only system using lithium polymer battery technology — leapfrogging competitive in-market nickel-metal hydride and lithium-ion applications.
Hyundai’s Hybrid Blue Drive is a proprietary parallel hybrid drive system that runs on the already fuel-efficient 2.4-liter Theta II engine (169 horsepower at 6,000 rpm and 156 lb-ft of torque at 4,500 rpm) mated to a 6-speed automatic transmission and a 30kW (151 lb-ft) electric motor for maximum fuel economy.
Hyundai Hybrid Blue Drive uses the company’s proprietary 6-speed automatic transmission rather than a conventional hybrid’s CVT. Hyundai’s strategy involves an adaptation of the modular 6-speed transmission, replacing the torque converter with an electric motor and high-efficiency oil pump. This technique uses a traditional step-shift 6-speed transmission rather than a CVT to provide a more traditional shift feel that is preferred by customers and sometimes artificially replicated in CVT applications.
The 2011 Sonata Hybrid offers drivers a way to be more engaged in fuel-efficient driving. The Hybrid Technology Display is featured on a 4.2-inch LCD screen located between the odometer and tachometer, or is visible on the optional 7-inch navigation screen. It features the following information: Driving mode; Energy flow within the vehicle; Engine and motor movement; Fuel level; Battery power levels and charge status; Electric vehicle mode indicator; and average and instant mpg.
Base model estimated mpg: 37/39
Estimated starting price: $25,795
Compiled by Motor Matters

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