The 2013 Hyundai Sonata Hybrid gets a larger 10.5 kW Hybrid Starter Generator (HSG), higher output 35 kW electric motor, a more powerful 47 kW Lithium Polymer battery pack and an optimized hybrid operating strategy.
The weight of the pack has gone from 92.4 pounds to 87.8 pounds while trunk volume has increased from 10.7 cu. ft. to 12.1 cu. ft.
These upgrades are paired with a 2.4-liter Theta II four-cylinder engine that now runs on a more efficient Atkinson cycle and an enhanced transmission to generate 206 horsepower.
When in pure electric drive, the Sonata Hybrid can drive electrically up to 75 miles per hour, though Hyundai does not mention what is the range in purely EV mode.
EPA Estimated Fuel Economy is 36 mpg city, 40mph highway and 37 mpg combined.
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