KERS (Kinetic Energy Recovery Systems), optional for next season, harness waste energy generated by the car under braking and convert it into additional power which can be accessed by the driver via a ‘boost button.
"It's a great challenge," Ferraris technical director Aldo Costa, engine and electronics director Gilles Simon and planner Nikolas Tombazis told reporters at Maranello. "As far as the engine and the electronics are concerned costs went down, but with the KERS we spent much more than we had planned.
"We're working a lot on the energy recovery system. We're a bit behind on our schedule, but our goal is to be ready with a working KERS for the first race, which will be held in Australia. Meanwhile we're also appraising the car without KERS."
Ferrari are due to complete their 2008 testing programme in Portugal on Wednesday.