It has been confirmed that both Mercedes and Ferrari will bring upgrades to their cars for the Miami Grand Prix, whilst Red Bull have not made any changes.
A document released by the FIA ahead of Friday's car presentation event in the pit lane states that the Silver Arrows have updated their front wing, rear wing and beam wing, with the latter two changes made to primarily reduce drag.
As for Ferrari, the rear wing of the F1-75 has been upgraded, again with the aim of lowering downforce in line with the layout of the Miami International Autodrome.
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Other changes made ahead of the Miami Grand Prix
Alterations have also been made at McLaren, where the front suspension and floor edge have been updated on their car. These changes were carried out with the intention of increasing reliability.
At Alpine, the rear brake drum has been upgraded to boost performance, while Williams and Alfa Romeo have both opted to change the sidepod cooling louvres to meet the cooling requirements of the Miami venue.
Additionally, Haas have made alterations to their rear wing by using a trimmed version of one of their normal assemblies, which they have deemed to be a "cost effective way of adding a lower drag variant of an existing rear wing to our range".
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