Lamborghini has what it claims is the “most powerful car ever produced” thanks to a novel hybrid powertrain with supercapacitors. Combined with a V12 engine, the Sián delivers a total of 819 HP (602 kW) and has a top speed of “over 350 km/hour.” The Sián’s supercapacitors, which can charge and discharge in just seconds, are three times more powerful than a battery of the same weight and three times lighter than a battery producing the same power. 

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