When it comes to updates pertaining to the floor, there’s always aspects of a redesign that we’re unable to quantify, given that the majority of the changes will be made to parts of the floor we cannot see, such as the underfloor.
However, we do know, courtesy of the car presentation submission document that the teams must complete prior to an event, that Ferrari has made changes to the front and mid sections of the floor, while also altering the geometry of the diffuser.
It also appears that the edge of the floor has been optimised as part of the redesign, with the upwardly rolled scroll section and the section that tapers toward the rear tyre both subtly different in Miami.
Source: Autosport