Audi showed off its A7 h-tron, a new fuel cell development vehicle, at the 2014 Los Angeles auto show.

Published:Caption:Photo:Wayne Cunningham/CNET
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The A7 h-tron represents one of several efforts by Audi to develop a zero emission vehicle. The car uses a unique mix of lithium-ion battery and electricity-generating fuel cell.

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A lithium-ion battery pack and four hydrogen tanks packaged in the car feeding a fuel cell stack power electric motors at the front and rear wheels.

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The right rear fender holds a hydrogen filler for the car's 5 kilogram hydrogen tank capacity.

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The left rear fender has a J1772 electric charging port, connected to the car's 8.8 kilowatt-hour lithium-ion battery pack.

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Audi offered rides at the show to demonstrate the car's practicality.

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The cabin retains much of what you would expect from an A7.

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Audi places a power gauge on the left of the instrument cluster.

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With electric motors at the front and rear wheels, the A7 h-tron doesn't need a traditional gear box. This shifter on the console selects the drive mode.

Published:Caption:Photo:Wayne Cunningham/CNET
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Audi implemented special screens to monitor the drivetrain performance, showing when power is regenerating, coming from the battery or generated by the fuel cell.

Published:Caption:Photo:Wayne Cunningham/CNET
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This consumption graph gives a rough idea of remaining hydrogen and battery power.

Published:Caption:Photo:Wayne Cunningham/CNET
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