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Lamborghini Sian's supercapacitor hybrid system explained by company's CTO

"We are a game-changer and a provocateur," Lamborghini's CTO, Maurizio Reggiani told Engadget. The automaker has a long history of making waves with traffic-stopping designs and more recently, innovative tech. At last week's Frankfurt Motor Show, the Italian company unveiled its Sian hybrid supercar. But it ditched the traditional battery pack in favor of a supercapacitor to power an electric motor, which is exactly what you would expect from the Italian company. Typically a hybrid uses a lithium-ion battery pack to store energy. Then when needed, it transfers an electrical current to a motor (or motors) to either help the gas-powered engine or take over propulsion entirely. It's a recipe that has successfully improved gas mileage and sold over six million examples of the Toyota Prius, not to mention countless other hybrids. "It's too easy to follow," Reggiani said. "If you want to move for the first time in electrification you must guarantee that the implementation will not destroy the DNA of a car and brand." With that in mind, the automaker went with a supercapacitor instead of a battery. According to Reggiani, the supercapacitor offers up three times the power of a battery pack from the same weight and packaging. Plus, it stores and discharges energy much quicker. The spent power can be fully regenerated very quickly during normal braking. Reggiani explained that this could be particularly useful while cornering. Going into a corner, the driver applies the brakes and replenishes any spent energy. Then, as the driver accelerates out of the corner, all the available power is there for acceleration. Then as the driver brakes for the next curve, the process starts all over again. Plus, the supercapacitor doesn't have to cool down like traditional battery, it's just ready to go at all times -- which is exactly what Lamborghini owners want. The output of the 48-volt motor installed into the gearbox is 34 horsepower which brings the total power output of the V12 Sian to 819 horsepower. While 34 horsepower doesn't seem like much, it means the vehicle can do zero to 62 miles per hour in under 2.8 seconds. That's Tesla Model S Performance and Porsche Taycan levels of fast. But there are other benefits. The electric motor reduces the torque hits of the gears shifting. You know those momentary losses -- then explosions of power -- you feel in the car as it speeds up, that's the vehicle going through its gears.

Maurizio Reggiani talks racing, forced induction, and Lamborghini V12s

Maurizio Reggiani deserves his own chapter in Lamborghini's history. He joined the Italian company in 1995 and rose to the position of chief technical officer in 2006; he notably led the development of some of Lamborghini's greatest modern-day engines, including the 6.5-liter V12 that powers the Aventador. His time as the head of Lamborghini's research and development department ended earlier in 2022 and he now serves as vice president of motorsport. His successor, Rouven Mohr, is tasked with implementing an ambitious and far-reaching electrification strategy called Direzione Cor Tauri and outlined in 2021. As Lamborghini prepares to enter a new era, I sat down with Reggiani for a behind-the-scenes look at nearly 30 years of V12 development. [The following has been edited for clarity.] RG: Lamborghini has made other engines and other companies have made V12s. Why is the V12 so often associated with Lamborghini? MR: In a time when everybody started talking about downsizing and reducing cylinder count, we continued to say that the V12 is the flagship of the super-sports car. We were born with this: Lamborghini has made a V12 during every year of its history. We also did V8s in the time of the Jalpa, for example, but the V12 was every time the main pillar of this company. If you want to be considered the pinnacle of super-sports cars, no other engine can really speak to purists like a naturally-aspirated V12 can. In terms of power, in terms of sound, in terms of emotion, and in terms of, let me say, the coolest engine that's possible in terms of engineering definition. RG: What projects have stood out to you during your time at the head of Lamborghini's R&D department? MR: When I started my career, 40 years ago at Maserati, I worked in engine development. At Bugatti, I was responsible for powertrain, which of course includes the engine. For me, an engine is kind of like a first love, and you remain in love for all of your life. To look at an engine, to look inside, to discuss the components, to have an opinion, and to give a suggestion was my way of working every time. One of the projects that excited me the most was the Diablo GT. For the first time, we decided to put a single throttle per cylinder, and it was a level of sophistication that was more or less never used before by Lamborghini. You take experience from the past and try to apply it to [the present]. This improved a lot the performance, and it was really super exciting.

2020 Lamborghini Huracan Spyder getting Performante looks

The Lamborghini Huracan has been around since the 2015 model year, and has been pretty much unchanged with the exception of a slightly restyled rear-drive variant. Lamborghini seems to think it's about time the Huracan was updated, since one of our spy photographers caught a new version in light camouflage out testing. It appears the new model borrows heavily from the Huraca n Performante. Up front, the main grille has pretty much the same set of fins and gills as the ultra-fast Huracan. There does appear to be an extra pair of horizontal slats on either side of the middle trapezoidal shape in the grille. Along the side, things are pretty much the same as on any current Huracan, but the lower intakes now have little winglets in the middle of the air inlets. The rear of the car is the most noticeably changed. It features two large exhaust tips in the middle of the rear fascia a la the Performante. They're also housed in another trapezoidal structure, again like on the top-dog Huracan. The rear diffuser is more aggressive than the current model, but not as much as the Performante. There aren't any openings behind the rear tires, either, and the air outlets on either side of the exhaust area are new. There's also a more pronounced duck tail spoiler than on previous models. We aren't expecting any earth-shattering changes for this updated Huracan. For one thing, the visual changes show that this is mostly the same car underneath. We could see it taking advantage of the stiffer suspension and some the light, molded carbon fiber parts of the Performante to help improve the performance a bit more. The Performante's active aerodynamics will probably stay exclusive to that high-performance model, though. There's also the fact that completely new versions of the Hurac an and Aventador are on the horizon, and may pack some huge changes such as hybrid powertrains. As such, Lamborghini is probably just going to try and stretch this model until it's time for the new one. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Featured Gallery 2020 Lamborghini Huracan Spyder spy shots Image Credit: SpiedBilde Spy Photos Lamborghini Convertible Performance Supercars