Ferrari HY-KERS concept for a mid engined architecture on display with a  V12 at the 2012 Beijing Motor ShowHY-KERS concept, couples hybrid technology with mid-rear architecture to cut fuel consumption and reduces CO2 emissions on the combined cycle by 40 per cent while also boosting performance. The powertrain on display was a 12-cylinder engine and dual-clutch gearbox coupled to an electric motor. A second electric motor is dedicated to the auxiliary systems and is located in front of the V12. The two electric motors are connected to the batteries which can be positioned in the car in line with the available space and final configuration.

The aim was to ensure a target of 1 KW per kg of extra weight added by the hybrid system, and Ferrari says new, smaller and lighter electronic components used come close to achieving the target.


The HY-KERS’ electric motor delivers power using one of the gearbox’s two clutches and is mated to one of the two main shafts. The result is instantaneous, continuous power delivery between the electric motor and petrol engine. During braking, the electric motor acts as a generator, using the kinetic energy from the negative torque to recharge the batteries. This crucial task is managed by a dedicated ECU, also F1-derived, which not only controls the electric motor, but also governs the power to the auxiliary systems (power steering, brake servo, air conditioning, onboard systems).

Work on the system has now reached the end of the experimental phase and the development phase will commence in the coming months. While the HY-KERS system in the Ferrari 599 HY-KERS on display at the 2010 Geneva Motor Show had a CO2 reduction of 30% compared to an ICE engine making the same power, the HY-KERS system for the mid engined V12 configuration will enable Ferrari to reduce emissions by 40 per cent over the combined cycle.