Hot off the heels of Porsche’s 918 Spyder plug-in hybrid concept, Ferrari unleashed a super-slick hybrid electric supercar of its own: the Ferrari 599. During the debut of Ferrari’s 2010 F10 Formula 1 race car, CEO Luca de Montezemolo disclosed that a hybrid version of the 599 was in the works, and now we have full specs for the bright green concept car that’s also the star of the Prancing Horse’s Geneva Motor Show stand.

Dubbed as Ferrari 599 HY-KERS, this super car is based on Ferrari’s 599 GTB Fiorano. The car is the latest ‘experiment vehicle’ from the legendary Italian sports car company and its first attempt at entering the hybrid market. Ferrari claims that the car can reduce CO2 emissions from 415g/km to around 250g/km. Fuel economy also gets a boost from 15.8 mpg to an anticipated 22 mpg. More importantly, the HY-KERS is not only more efficient than the average car, it’s faster and even better to drive. The supercar provides the usual impressive Ferrari stats–200 mph, zero to 60 in 3.5 seconds, and 125 mph in 10.5 seconds—but sans the traditional roar of the engine associated with Italian speed freaks.

Beneath the skin, it brags of an extremely slim lithium-ion battery pack, mounted below the floorpan of the car. A new Ferrari-developed electric motor is positioned beneath the boot floor and mated to the 599’s seven-speed F1 dual clutch gearbox. The 100bhp unit boosts the 620bhp 6.0-liter V12’s output to a staggering 720bhp and ups total torque by 150Nm to about 750Nm. The drive train and power train configurations add 80kg to the weight of the vehicle. However, the set up actually improves the car’s dynamic performance by lowering its center of gravity, and with the significant upgrade in power and torque, Ferrari says that it aims to offset every extra kilogram by a gain of at least 1bhp.

The F1 influence is quite apparent in the electric motor which is designed to cut in automatically during acceleration, providing instantaneous torque when driving away from a standstill and during overtaking maneuvers. This also improves traction and braking. Under braking, the electric drive unit acts as a generator, using the kinetic energy from the negative torque produced to recharge the batteries. Energy from the V-12 engine is further conserved by running ancillaries such as the air conditioning, power steering, power-assisted brakes, and other on-board systems off the batteries instead of relying solely on the engine. As with the F1 KERS system, Ferrari says drivers can opt for a steering wheel-mounted button to enhance performance as needed.

Ferrari claims that while the hybrid 599 is strictly a concept car for now, it hopes that the technology can be applied to all its models in three to five years, whether they are V-8 or V-12 powered.