Lamborghini has unveiled its newest supercar, the Sian hybrid. It carries a price tag of $2 million. It is touted to be the fastest Lamborghini ever made. This is Lamborghini’s first step towards the future of electric supercars. Lamborghini’s CTO Maurizio Reggiani doesn’t have a very positive view of using batteries inside electric cars. He says that batteries add bulk and weight to the car. Weight adversely impacts the performance of supercars. These beasts don’t have a lot of room to spare, either.
In the last two years, Reggiani has grown keen on using super-capacitors. It powers the car instead of the batteries and placed behind the seats in front of the engine. Many supercars come with a rear- engine compared to the more common front-engine cars.
Super-capacitors are fundamentally different from batteries. While batteries depend on chemical reactions to produce energy, super-capacitors store charge. They have a high energy density and can store up to three times the energy contained in a battery of similar weight.
These capacitors can discharge very fast, without losing too much of energy as heat. During braking, the regenerative braking system charges the capacitors which can be used to accelerate the car when required. The Sian has a 34-horsepower electric motor which powers the car when the automatic transmission changes gears.
This supercar isn’t a mild hybrid like the Prius. It has a monster V12 engine that powers the supercar during its sprints while the electric motor powers it during the change of gears.
The Sian can sprint from 0 to 60 in under three seconds and has a top speed of 217 miles per hour. The electric motor contributes 10% to the speed. The Sian is not the first Lamborghini to use super-capacitors. The $400,000 V12 Aventador also uses it to crank up its massive engine.