Remember when hybrids were boring? Lamborghini certainly doesn't. Before the Revuelto brought electrification to the masses (well, the massively wealthy), Sant'Agata created something utterly bonkers. They took their fire-breathing V12, added a dash of electricity, and created the Sián. And now, one of the ultra-rare Roadster versions has shown up for sale at iLusso in California.But first, let's talk about what makes the Sián special. While everyone else was stuffing their hybrids with heavy batteries, Lamborghini went full mad scientist. They used a supercapacitor - a piece of tech that sounds like it belongs in a Marvel movie. It's lighter than traditional hybrid systems and delivers power like a lightning bolt. Perfect for a car whose name literally means 'lightning' in Bolognese dialect.Powering this THING is a 6.5 litre V-12 engine that is the stuff of legend. At max chat, it spat out 785 horses, at 8,500 revs per minute. And then, the e-motor setup added another 34 HP to the mix, to give it a total output of 819 horsepower. At launch in 2020, this made it the most powerful Lambo ever built. Even today, those numbers command respect: 0-60 mph vanishes in 2.9 seconds, and the top speed crashes through 217 mph.But here's where it gets really interesting. Lamborghini built just 63 examples of the regular Sián FKP 37 (named after Ferdinand Karl Piëch, because why not add some German flavor to your Italian masterpiece?). The Roadster? A mere 19 units. For context, that makes it rarer than finding a humble supercar owner on Instagram.Speaking of special cars, we've got a Sián FKP 37 sitting in our showroom right now. Here's ours: But this Roadster at iLusso? It's something else entirely. The spec is pure automotive theater. The paint transitions from bright metallic blue up front to a deeper shade at the rear, like a frozen ocean wave. Gold wheels and matching accents add just the right amount of flash - because if you're buying a limited-edition Lamborghini, subtlety isn't really the point, is it? The interior continues the drama. Cream leather with blue stitching covers most surfaces, while grey Alcantara and gold details remind you this isn't just any old supercar. Now, coming to the damage, the moolah. iLusso has been mum on the price, but appraisers from all of the top auction houses (fomaing at the mouth no doubt) think it'll go for more than 5 million dollars. US. That's more than five Revueltos. Or one decent-sized house in Los Angeles. Limited-edition Lamborghinis have a habit of becoming more valuable over time. Just ask anyone who thought the Miura was expensive in 1966.This car is a lot more than a light vehicle with a fast engine. It's the moment Lamborghini proved that the future doesn't have to be boring. While other manufacturers were busy making sensible hybrids, Lamborghini created a thunderbolt on wheels. They took the hybrid formula and made it dramatic, excessive, and completely insane - in other words, they made it a proper Lamborghini. This Roadster version, with its head-turning spec and delivery mileage, might just be the finest example available. Sure, $5 million is serious money, but can you really put a price on owning a piece of automotive history? Well, actually, yes. It's $5 million. Or thereabouts.