The limited-run Lamborghini Sián FKP 37 and Sián Roadster aren’t just the first Lamborghini models to use innovative supercapacitors, but also feature an intriguing cooling system.
Dubbed ‘Smart Material System’, it is designed to help extract heat generated from the 6.5-liter V12 and accumulated under the engine cover. What makes it interesting is that it isn’t operated electronically and is fully self-actuated.
The system comprises of two small springs made from a shape memory alloy. These springs have a thermal memory which means the chemical structure changes based on the temperature. When the springs hit a certain temperate, they push open four small flaps on the engine cover.
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“It helps save weight because it doesn’t need hydraulic, electric, or mechanical actuation,” head of the aerodynamics of the Sián Coupe and Roadster, Ugo Riccio, explained. “This system is completely autonomous without the use of electronics.”
Lamborghini project leader Paolo Mazzelli added that the company plans to use shape memory alloys for other vehicle components moving forward.
Both the FKP 37 Sián Coupe and Sián Roadster are driven by a 6.5-liter naturally aspirated V12 that works alongside a 34 hp electric motor incorporated into the gearbox. The powertrain also features a 48-volt mild-hybrid system and pushes out a combined 808 hp, allowing the duo to hit 62 mph (100 km/h) in less than 3.0 seconds (2.8 seconds for the Coupe, 2.9 seconds for the Roadster) and reach a top speed of over 217 mph (350 km/h).