Believe it or not, the Sian is actually the first production Lamborghini car to be fitted with a hybrid system to augment the internal combustion engine. Given that this is Lamborghini's newest flagship, it shouldn't come as a surprise that powering the vehicle is the naturally-aspirated 6.5-liter V12 from the Aventador SVJ. It is joined by a 48-volt mild hybrid system that dishes out an additional 34 horsepower. In total, the Sian generates an impressive 819 horsepower.
The electric motor used in the Sian isn't nearly as powerful as the motors that you'd find in the Ferrari LaFerrari, McLaren P1 or even the Porsche 918 Spyder. So, this seems more like a nod to around-town efficiency than something that is going to significantly add performance around the track.
Still, over 800 horsepower on tap is nothing to scoff at, which allows the Sian to hit 60 mph in just 2.8 seconds, which incidentally is exactly the same time as the Aventador SVJ. Likewise, the Sian can hit an electronically-limited top speed of 217 mph. While it won't come close to keeping up with the 300+ mph Bugatti Chiron, there's no way that you could get up to 217 mph on public roads without 1) killing yourself/others or 2) ending up in jail with your vehicle impounded.
When it comes to styling, you wouldn't mistake the Sian for anything else but a Lamborghini with its sharp angles and chiseled good looks. It's not nearly as outrageous as the Terzo Millennio concept, but it does take a few styling cues from that concept car. It's a clear evolution of its Aventador's design language and would definitely make you do a double take if you saw one accelerating towards you in your rear-view mirror.
The inside of the Sian is not nearly as over-the-top, and actually looks rather sedate -- for a supercar. There's a large LCD instrument cluster ahead of the driver and a relatively small display in the center console for vehicle controls and infotainment duties. Compared to the upcoming Porsche Taycan, the Sian interior looks relatively old school.
Lamborghini is building just 63 examples of the Sian at a cost of $3.6 million each. But before you go checking your bank account to see if you can afford it -- chances are that you can't -- Lamborghini says that all of the vehicles have already been spoken for.