Although based on the LS 460 L, Lexus has added many features to the LS 600h L, including a hybrid powertrain, to make it Lexus' new flagship luxury sedan.

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The long wheelbase means plenty of leg room for the backseat passengers.

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The rectangular tailpipes mold into the rear bumper. The car has very low tailpipe emissions, earning a SULEV rating from the California Air Resources Board.

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The LS 600h L is the first production car to use LED headlights.

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To distinguish the LS 600h L from its normally powered sibling, Lexus added a blue tint around the grille-mounted badge.

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With quality materials and construction, the interior of the LS 600h L is a nice place to be. Lexus took pains to insulate the cabin from external noise.

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With a 19-speaker Mark Levinson sound system, the internal noise in the car can be quite heavenly.

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The green lines next to the red freeway lines indicate traffic flow on the navigation screen. Real-time traffic data is provided by XM satellite radio.

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After entering a destination, the LS 600h L offers different route choices. If there is bad traffic on your itinerary, the car will alert you and suggest an alternate path.

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Lexus put the hybrid power flow diagram on a display between the speedometer and tachometer.

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An EV button keeps the engine off, so the wheels are driven only by the electric motors. If the battery runs low, the EV mode will automatically switch off so the engine can start up, powering the car and recharging the battery.

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The air suspension can be set to Comfort or Sport modes, and it can be set to maximum height. Other controls let you change torque characteristics and also heat or cool the seats.

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The executive option gives the right-rear seat a power-retractable ottoman. The seat also has massage units for those long trips.

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A band of controls with the executive seat let the rear-seat passenger adjust the front passenger seat, maximizing leg room or folding it down to use as a table.

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The rear-seat passenger can also control movies or music with the rear-seat LCD.

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