Flybrid Systems have been working with a number of OEM car makers including Jaguar Cars to develop flywheel hybrid systems for road cars. Based on the original Flybrid Formula One KERS device these systems feature a fully mechanical drive using a CVT but have evolved to better meet road car requirements and now feature:

• A design life of 250,000 kms
• Low cost in volume manufacture
  
• Optimised CVT design for high efficiency at low power levels
• Bespoke Flybrid developed vacuum, oil and hydraulic pumps to reduce parasitic losses
• Powerful clutches to allow launch of the vehicle from rest under flywheel power alone with the engine turned off
  
• Fully automatic control systems that react to normal vehicle control pedal movements and require no additional inputs from the driver

These are full hybrid systems capable of kinetic energy recovery but also able to store energy when the vehicle is not braking in order to optimise the engine operating efficiency. Using optimised strategies CO2 and fuel consumption savings of over 20% are possible on the NEDC cycle and more than 30% is possible in real world conditions.