Red Bull has become the first Formula 1 team to copy Ferrari's upside-down rear wing and seems to have gone even further with the opening it creates.

Ferrari shocked the F1 paddock and fans when it revealed its innovative rear wing design back in Bahrain testing.

For most teams this year the rear wing continues to function like the old drag reduction system did, with the rear wing flag popping open, although Alpine has a slightly different design that moves the trailing edge of the wing back.

Ferrari’s design, though, rotates the wing itself so the top flap is upside down when straight mode is activated.

It has yet to race this rear wing as it initially battled to ensure it could complete the change of position in the time required by the regulations.

Several teams suggested at the time they had either explored something similar or would do so after witnessing Ferrari's design in action, but Red Bull has become the first to actually recreate it.

To allow the additional travel, Red Bull says the rear wing mechanism and attachments to the elements have been revised "necessitating a subtle altering of the third profile near centreline".

When the wing was used in FP1 in Miami it appears to have achieved an even greater opening - and presumably drag reduction to go with it.

In Red Bull's design, when the rotation is complete, the top flap ends up being higher than the rear wing endplates. On the Ferrari the trailing edge of the wing - which ends up being the forward-most part of it when in straight mode - is still within the endplates.

And the gap is visibly larger than what Red Bull's previous, conventional rear wing opening achieved.

Max Verstappen was second fastest in FP1 in Miami with the new wing, which is part of a major upgrade package for Red Bull here, three tenths slower than Ferrari's Charles Leclerc.