CHANGES FOR FORMULA 1 SEASON 2017 SO FARTyresTyres are around 25 percent wider than in 2016, with rear width up from 325mm to 405, and front width raised from 245 to 305. Tyre diameter has also increased very slightly, though wheel rim size remains unchanged at 13 inches
BodyworkFront wingAs shown in the drawing below from technical artist Giorgio Piola, front wing span is increased from 1650mm to 1800mm. Note also that the overall width of the car is up from 1800 to 2000mm.
Rear wing and rear diffuserAs shown in the drawings below, the height of the rear wing is reduced to a maximum of 800mm, down from 950 previously. Meanwhile, the diffuser is more powerful thanks to increased height - up from 125mm to 175 - and width - up from 1000mm to 1050. It is also longer, now extending ahead of the rear wheel axle line.
SidepodsAs shown below, bodywork is now wider, with maximum width up from 1400mm to 1600mm.
WeightMaximum weight is increased from 702kg to 722kg plus tyres.
Power unitsA rule change has been made to prevent drivers stockpiling spare power unit elements. During any single event, if a driver introduces more than one of a power unit element that is subject to a grid penalty, only the last element fitted may be used at subsequent events without further penalty.
A number of changes have also been introduced aimed at reducing power unit costs, guaranteeing supply for customer teams, and closing the performance gap between engines:
- the power unit price for customer teams has been reduced by €1m per season compared to 2016.
- to ensure the supply of power units to customer teams, the homologation procedure now includes an ‘obligation to supply’ that is activated in the event of a team facing an absence of supply.
- the previous ‘token’ system for in-season engine development has been removed.
- Additionally, constraints on power unit part weights, dimensions and materials, and on boost pressure, are being introduced in 2017 and in 2018.