Expected to sell for between $2.2 million and $2.6 million at RM Sotheby’s upcoming Monterey Auction next month, this exceptional 2021 Lamborghini Sián FKP 37 is one of only 63 coupes produced worldwide, making it among the rarest and most historically significant modern Lamborghinis.
With just over 300 miles recorded at cataloguing, the hypercar also boasts nearly $237,000 in bespoke factory options, including extensive exposed carbon fiber detailing and a stunning Ad Personam Rosso Efesto paint finish that transitions into gloss carbon fiber.
The Sián marked a pivotal moment in Lamborghini’s evolution as its first production hybrid hypercar. Powered by a naturally aspirated 6.5-liter V-12 derived from the Aventador, the engine produces 785 horsepower, while a pioneering 48-volt electric motor contributes an additional 34 horsepower.
Rather than relying on a conventional battery, Lamborghini introduced an industry-first supercapacitor system, dramatically reducing weight while delivering instantaneous power and regenerative energy recovery. The result was the quickest-accelerating Lamborghini of its era, capable of sprinting from 0–62 mph in under 2.8 seconds.
Beyond its groundbreaking powertrain, the Sián blends Lamborghini heritage with futuristic design. Its unmistakable silhouette draws inspiration from the legendary Countach, featuring the signature roof-mounted “periscopio” channel alongside Y-shaped lighting elements influenced by the Terzo Millennio concept. Innovative temperature-sensitive rear cooling vanes further showcase Lamborghini’s advanced engineering by operating without motors or electronic actuators.
This particular example was delivered new through Holman Motorcars St. Louis and configured through Lamborghini’s exclusive Ad Personam personalization program. The exterior’s dramatic Rosso Efesto gradient complements a bespoke cabin finished in Nero Ade leather with Rosso Alala Alcantara inserts, contrast stitching, exposed carbon fiber trim, and matching red-accented wheels.
Showing just over 300 miles at the time of cataloguing, the hypercar remains in exceptional condition and previously appeared in the Petersen Automotive Museum’s acclaimed Hypercars: The Allure of the Extreme exhibition in Los Angeles.
Offered with a copy of its original window sticker, factory manuals, charging cable, car cover, and air compressor, this remarkably preserved Sián FKP 37 represents one of the defining collector hypercars of the modern era—a bridge between Lamborghini’s celebrated naturally aspirated V-12 legacy and its electrified future.
Source: RM Sotheby’s
