{"id":889100,"date":"2025-07-14T11:09:04","date_gmt":"2025-07-14T11:09:04","guid":{"rendered":"https:\/\/www.supercars.net\/blog\/?p=889100"},"modified":"2025-07-14T11:09:04","modified_gmt":"2025-07-14T11:09:04","slug":"ultra-rare-819hp-lamborghini-sian-fkp-37-headed-for-auctions","status":"publish","type":"post","link":"https:\/\/www.supercars.net\/blog\/ultra-rare-819hp-lamborghini-sian-fkp-37-headed-for-auctions\/","title":{"rendered":"Ultra-Rare 819HP Lamborghini Si\u00e1n FKP 37 Headed for Auctions"},"content":{"rendered":"<p>The <a href=\"https:\/\/www.supercars.net\/blog\/the-lamborghini-sian\/\" target=\"_blank\" rel=\"noopener\">Lamborghini Si\u00e1n FKP 37<\/a> represents a pivotal moment in Lamborghini\u2019s history as its first hybrid hypercar. Powered by a 6.5-liter V12 engine paired with a supercapacitor-based 48-volt electric motor, the Si\u00e1n produces a total of 819 horsepower\u2014785 from the combustion engine and 34 from the electric system.<\/p>\n<figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362950-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure>\n<p>This advanced setup enables the car to accelerate from 0 to 62 mph in just 2.8 seconds, making it the fastest-accelerating Lamborghini at the time of its release. Rather than using traditional lithium-ion batteries, Lamborghini integrated a supercapacitor system, which is significantly lighter and capable of delivering instant power, eliminating shift lag, and aiding regenerative braking.<\/p>\n<figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362947-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure>\n<p>The Si\u00e1n\u2019s design is inspired by the iconic <a href=\"https:\/\/www.supercars.net\/blog\/50-years-since-the-first-lamborghini-countach\/\" target=\"_blank\" rel=\"noopener\">Countach<\/a>, with futuristic elements such as Y-shaped headlights and self-adjusting cooling vanes that activate based on temperature. Only 63 units of the Si\u00e1n FKP 37 were built, honoring the company\u2019s founding year, and each car was individually tailored through Lamborghini\u2019s Centro Stile.<\/p>\n<figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362946-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure>\n<p>This particular Si\u00e1n, with just 208 miles, is finished in Viola Aletheia over Nero Cosmus, featuring copper and purple accents, and includes the $105,216 Carbon Package. It will be offered by RM Sotheby\u2019s on August 15\u201316 at their <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/\" target=\"_blank\" rel=\"noopener\">Monterey auction<\/a> with an estimated value of up to $2,800,000.<\/p>\n<figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362951-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure><figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1363002-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure><figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362945-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure><figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362943-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure><figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362942-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure><figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362992-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure><figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362948-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure><figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362987-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure><figure class='gallery-item'>\r\n            <div class='gallery-icon landscape'>\r\n                <a href='https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-scaled.jpg' class='tipi-lightbox'>\r\n\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1828\" src=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-scaled.jpg 2560w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-300x214.jpg 300w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-1024x731.jpg 1024w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-100x71.jpg 100w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-770x550.jpg 770w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-1536x1097.jpg 1536w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-2048x1463.jpg 2048w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-500x357.jpg 500w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-293x209.jpg 293w, https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2025\/07\/2021-Lamborghini-Sian-FKP-37_1362941-1400x1000.jpg 1400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\r\n\t\t\t\t<\/a>\r\n            <\/div>\r\n                <div class='wp-caption-text gallery-caption'>\r\n                <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" rel=\"noopener noreferrer\" target=\"_blank\">\nDrew Shipley @ RM Sotheby\u2019s\n<\/a>\n\r\n                <\/div><\/figure>\n<p>Source: <a href=\"https:\/\/rmsothebys.com\/auctions\/mo25\/lots\/r0129-2021-lamborghini-sian-fkp-37\/\" target=\"_blank\" rel=\"noopener\">RM Sotheby&#8217;s<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Lamborghini Si\u00e1n FKP 37 represents a pivotal moment in Lamborghini\u2019s history as its first hybrid hypercar. Powered by a 6.5-liter V12 engine paired with a supercapacitor-based 48-volt electric motor, the Si\u00e1n produces a total of 819 horsepower\u2014785 from the combustion engine and 34 from the electric system. This advanced setup enables the car to accelerate from 0 to 62 mph in just 2.8 seconds, making it the fastest-accelerating Lamborghini at the time of its release. Rather than using traditional [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":889106,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10112,13412,85,22642,11577],"tags":[6538,10577,2302],"class_list":["post-889100","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-auctions","category-cars-for-sale","category-lamborghini","category-sc","category-auction-action","tag-cool-lamborghini-for-sale","tag-lamborghini-sian-fkp37","tag-rm-sothebys"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ultra-Rare 819HP Lamborghini Si\u00e1n FKP 37 Headed for Auctions<\/title>\n<meta name=\"description\" content=\"Just 63 examples exist of the Si\u00e1n FKP 37, and this 819HP hybrid hypercar in Viola Aletheia is crossing the block with only 208 miles.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.supercars.net\/blog\/ultra-rare-819hp-lamborghini-sian-fkp-37-headed-for-auctions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ultra-Rare 819HP Lamborghini Si\u00e1n FKP 37 Headed for Auctions\" \/>\n<meta property=\"og:description\" content=\"Just 63 examples exist of the Si\u00e1n FKP 37, and this 819HP hybrid hypercar in Viola Aletheia is crossing the block with only 208 miles.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.supercars.net\/blog\/ultra-rare-819hp-lamborghini-sian-fkp-37-headed-for-auctions\/\" \/>\n<meta property=\"og:site_name\" content=\"Supercars.net\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Supercars.net\/\" \/>\n<meta property=\"article:published_time\" 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