2014 rule changes - ERS battery position, exhausts, rear wing 18 November 2013
For next season the amount of fuel that can be used in a race is limited to 100kg. Meanwhile, the batteries for the Energy Recovery Systems (ERS) must weigh between 20 and 25kg and be contained in single pack (not split, as Red Bull have done in recent years - upper drawing). This means it will be necessary to place the battery pack inside the fuel cell (red arrow, right). Also shown here are the exhaust tailpipes (red arrow, centre left), which must extend at least 170 to 185mm behind the rear axle line (and have a single exit). Another difference for 2014 is that the rear wing can no longer include a lower, beam wing. This means that vertical pillars (red arrow, left) will once more be used to fix the rear wing to the car.