Wet weather starts
In 2017 they will, however, be allowed one race (of their choice) where they can use a different design, they will also be allowed to change designs should they switch teams mid-season.
Fixed tyre allocations
Tyre supplier ‘Pirelli’ will introduce a new selection of tyre compunds for 2018 dubbed the “Pirelli rainbow”.
There are now 7 differnt compunds available with the inroduction of the new orange Superhard (hards will now have light blue sidewall) and pink Hypersoft.
each set is also one step softer than 2017 making the 2018 Hypersoft 3 steps softer than the 2017 softs.
As of the 2018 season teams are allowed to use up to 3 of the MGU-H, internal combustion engine and turbocharger elements of the power unit and 2 of the MGU-K, control electronics and energy store elements.
If any driver exceeds these limits they will receive grid penalties depending on how many elements they have previously used. The penalties are applied will also change, now they will be applied in order, with anyone who receives more than 15 automatically dropping to the back.