Ever since Edison perfected the electric battery, engineers have sought ways to unleash a rush of voltage at an instant. While every other hypercar makes due with Lithium-Ion cells, the Lamborghini Sian Roadster has been unveiled with a powerful supercapacitor. Combined with a 34 horsepower electric motor, the hybrid system only weighs 34 kg (75 lbs). “Sian” literally translates as lightning, and that is what capacitors do. They charge in a few seconds to unleash every electron simultaneously. Every old TV, air conditioner, and neon light uses them to start up, whenever a massive shock is needed.

That is why they make a perfect fit for hybrids. Electric cars need low voltage, sustained power, while the Sian will have a 34 horsepower burst of acceleration at your command. Titanium intake valves and a few other trick components were added to the V12 to achieve 785 horsepower. Adding 600 amps at 48 volts allows the total output to be 819 horsepower and 560 lb-ft of torque. The 7-speed single-clutch transmission has been calibrated to maximize electric power during gear shifts. Lamborghini has perfected the technology without the complexity and incredible weight of a dual-clutch gearbox. The press release says drivers will no longer feel the gears change, as electricity takes over for a few milliseconds.
Instead of the ALA system used on the Aventador SVJ, the Sian Roadster makes use of smart materials and electric servos to channel air around th...