The Lamborghini Sián uses a supercapacitor instead of a conventional lithium-ion battery for its hybrid energy storage.
Supercapacitors can accept and release electrical energy very rapidly, making them useful for capturing braking energy and delivering short bursts of power. In the Sián, the system powers a small electric motor mounted at the rear axle, which assists the V12 engine during acceleration and low-speed operation.
The Sián was unveiled in 2019 as Lamborghini’s first hybrid production car. Its name means “flash” or “lightning” in Bolognese dialect, reflecting the car’s electrification theme. The FKP 37 designation honours Ferdinand Karl Piëch and his birth year, 1937.
The Sián’s supercapacitor system is not the same as a large battery-electric drivetrain. It prioritizes high power and rapid cycling over long-duration energy storage, so it complements rather than replaces the car’s 6.5-liter V12. Lamborghini limited production to 63 coupés and later built 19 roadsters.