The latest generation of the Mercedes-Benz S-Class is a flagship sedan showing off an excellent level of opulence, comfort, power and driving capability.

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In the US, Mercedes-Benz has released the S550 Sedan and the S550 Coupe. This latest model is the S550 Hybrid, which not only offers a gasoline-electric drive system, but also the option to plug it in.

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Mercedes-Benz reaffirms its marque of luxury with the current S-Class, but adds many high-tech elements to keep the model up-to-date.

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The S550 Hybrid uses a turbocharged 3-liter V-6 combined with an 85-kilowatt electric motor, the power mixing through a seven-speed automatic transmission.

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LED headlights reduce power draw, cast bright illumination and will likely last for the life of the car.

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An array of sensors in the S-Class allow adaptive cruise control and lane-keeping assist, stepping stones to a truly autonomous car.

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Although it's not billed as a long-wheelbase vehicle, Mercedes-Benz only sells the longer versions of its S-Class sedans in the US. Short wheelbase versions are available in other markets.

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A corner braking system lightly applies the brakes on an inside wheel in a turn, helping the car rotate.

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The S550 Hybrid's air suspension can be set to Comfort or Sport, and provides an excellent ride.

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With its hybrid drive system, the S550 Hybrid can achieve average fuel economy in the high 20s.

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This J1772 electric vehicle charging port lets owners add electricity from the grid, improving the car's overall fuel economy.

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One drawback of the S550 Hybrid is a loss of trunk space.

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The multicontour seats actively adjust their bolsters when cornering, and include a massage function.

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The rear seats offer power adjustment and a huge amount of legroom.

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Mercedes-Benz smartly places its seat controls on the door, making them easy to access.

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Two big LCD displays occupy the dashboard, one for the instrument cluster and one for infotainment.

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The instrument cluster display can show a variety of information, such as route guidance.

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A head-up display shows vehicle speed and route guidance.

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The rearview camera shows excellent definition along with trajectory lines.

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The infotainment interface mixes a touchpad with a jog-dial, making for slightly confusing duplicate controls.

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A menu bar across the top shows major vehicle functions, while a menu bar across the bottom gives individual function controls.

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The navigation system uses nicely detailed maps.

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A swipe at the touchpad brings up this limited audio controller widget over the navigation system.

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The music library can be controlled using the jog dial or gestures on the touchpad.

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The audio play screen shows cover art, when available. A Cover Flow-type interface also lets you choose audio by album cover.

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The S550 Hybrid includes satellite and HD Radio.

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The Burmester audio system creates excellent sound reproduction.

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Mercedes-Benz includes a number of onboard third-party apps.

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Yelp is very conveniently integrated, showing business ratings and linking to navigation.

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The S550 Hybrid includes an online search tool for charging stations.

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This display shows the power flow from engine and battery, along with remaining battery charge.

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