New Lamborghini Sián Roadster Hybrid: Only 19 Will Be Made

The already sold-out Lamborghini Sián Roadster is the company’s first hybrid roadster and is powered by a supercapacitor instead of lithium-ion cells.

Lamborghini has officially revealed the new Lamborghini Sián Roadster – inspired by the Sián FKP 37 hybrid concept car first unveiled at the 2019 Frankfurt Motor Show.

After a week of Lamborghini teasing their new release with ambiguous images across social media, the Italian supercar maker has come forth with the latest hybrid creation.

Limited to only 19 vehicles (which are already sold-out), the Sián Roadster is the company’s first hybrid roadster and powered by Lamborghini’s 6.5-liter V12 engine with unique hybrid technologies that can produce up to 819 horsepower (602kW) of thermal and electric power.

“The Sián Roadster encapsulates the spirit of Lamborghini,” says Stefano Domenicali, Automobili Lamborghini Chairman and Chief Executive Officer. “It is the expression of breathtaking design and extraordinary performance, but most importantly embodies important future technologies. The Sián’s innovative hybrid powertrain heralds the direction for Lamborghini super sports cars, and the open-top Sián Roadster affirms a desire for the ultimate lifestyle Lamborghini as we move towards a tomorrow demanding new solutions.”

Unlike many other electric vehicle manufacturers, the Sián Roadster uses a supercapacitor developed in collaboration with MIT in Boston, which can store ten more times power than lithium-ion batteries and delivers optimum performance.

Located in the bulkhead between the cockpit and engine, the supercapacitor and e-motor system weighs only 34kg and works in conjunction with the V12 engine and a new powertrain.

The 48-volt e-motor itself delivers an additional 34hp for a total of 819hp (602kW), allowing the Sián Roadster to reach a top speed of over 218mph/350kmh and accelerate from 0 – 60mph 100kmh in less than 2.8 seconds.

The e-motor system also provides immediate response and supports low-speed manoeuvres (like reversing and parking) with electric power.

Another feature of the Sián Roadster is the regenerative braking system specially developed by Lamborghini. Unlike regular lithium-ion batteries, the supercapacitor’s symmetric behavior means that they can be charged and discharged with the same power, meaning the Sián’s energy storage system charges every time the vehicle brakes.

Each time the driver brakes, energy is stored in an instantly-available power boost which the driver can draw on immediately when accelerating away (making it 10% faster than a vehicle without this system).

Design-wise, the launch model of the Sián Roadster debuted in a color known as “Blu Uranas” with “Oro Electrum” wheels and “Blu Glauco” detailing, specially selected by Lamborghini’s Centro Stile and Ad Personam departments.

Carrying the unmistakable Lamborghini hexagonal DNA throughout the entire design, the Sián Roadster shares many of the same design elements of the coupe version, although it adds new details like the engine bonnet, the roll bar integrated into the front windscreen and aerodynamic wind vanes.

No prices have been announced yet, but with all 19 limited editions already sold, you’ll most likely have to sell a kidney to get one anyway.