Audi has taken the wraps off the new Audi A7 Sportback h-tron Quattro concept. The prototype looks identical to the production version A7 but it features a special plug-in hybrid hydrogen powered setup. 

The system comes with a fuel stack installed under the hood. The fuel cells operate in the 230 and 360V range and the main auxiliary assembles feature a turbocharger. The latest one forces the air into the cells while a recirculated fan returns the unused hydrogen into the anode. 

As a result, the car can travel 100 km (62 miles) with 1 kilograms of hydrogen. The total range is about 500 kilometers (311 miles) with a refill taking about 3 minutes. 

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In the electric mode, the car is able to travel up to 50 km (31 miles). 

The powertrain has a maximum output of 228 HP and 540 Nm peak of torque that comes from two electric engines. Each one is matted to an axle resulting an all-wheel drive setup. As a result, the car can sprint from stand still to 100 km/h (62 mph) in 7.9 seconds while the top speed clocked at 180 km/h (112 mph).

Source: Audi