With lots of aero work trialled during Practice One in Hungary, Sky F1's Ted Kravitz guides you through the new developments that caught his eye.
Williams have brought a new front wing to Budapest, albeit only one for Valtteri Bottas, while McLaren have taken design lessons from Mercedes in the work they have carried out around their rain light.
The Woking squad have also made revisions to their diffuser while Ferrari have been busy making changes to the rear of their car.