 During preparations for the British Grand Prix , Ron Dennis , the McLaren CEO and Chairman , noted that the team was encouraged by the aerodynamic data they had collected on the chassis , particularly its mid @-@ corner speeds which he claimed were similar to those produced by other teams . He further added that the car 's performance issues could be traced back to a lack of outright power and poor fuel efficiency from the engine . Éric Boullier , the team principal , further suggested that the main problem that the team faced was improving the efficiency of the RA615H 's energy recovery systems , both in harvesting and deploying the additional power , and that by developing these areas , the car could make up several seconds on lap time , enough for the car to compete regularly for podium finishes . 
