F1 testing 2025 gallery: All the latest technical details on display in Bahrain

Join us as we delve into the technical details on display during the first day of pre-season testing in Bahrain.

Be sure to check back regularly throughout the day too, as we’ll be sure to keep it updated with the latest images from the circuit.

Marvel at the details on show in Bahrain

Kimi Antonelli, at the wheel of the Mercedes W16, was the first driver in queue at the end of the pitlane, with Kiel probe rakes attached behind the front wheels of the car.

Lewis Hamilton trundles down the pitlane as he prepares to complete a five-lap run with a large Kiel probe rake mounted to the side of the chassis and behind the front wheels. The Brit completed a series of steady state speed runs to capture data before the rakes were removed.

McLaren also outfitted the MCL39 with Kiel probe rakes for their first run, with rakes mounted behind the front wheels, of which you’ll now be able to see that each team has their own take on the shape of the rakes being attached. This customization allows the teams to place the Kiel probes in areas where they’ll provide the data that they’re looking for, with McLaren notably choosing to include a stanchion that extrudes up to the level of the rear wing tip.

Racing Bulls had a much wider Kiel probe rake attached to the VCARB02, as they looked to capture more data on the wake being pushed out around the car.

Sauber had a much smaller Kiel probe rake attached to the C45 for its first run of pre-season testing, with the focus of their initial data collection placed around the airbox and engine cover’s shoulders.

Alpine had a much smaller Kiel probe rake attached to the A525 for their first run in pre-season testing, with the framework focused on the area just ahead of the sidepod inlet.

Red Bull opted not to mount a Kiel probe rake on the RB21 for their first run during pre-season testing, with Flo-viz paint applied to the leading edges of the various sidepod inlets instead.

Williams had several large Kiel probe rakes attached to the FW47, both behind the front wheels and ahead of the rear wheels and rear wing assembly

A close-up of the front wing on the Haas VF-25 which notably has a short chord on the innermost section of the upper flap.

A new wing mirror arrangement on the Aston Martin AMR25, with a vertical baffle mounted alongside the mirror body, rather than being fitted directly to the lower section. Also note the new camera stalks, which have an indentation alongside them to expose more of their surface.

A top down overview of the Sauber C45 front wing outside their garage

A close up of the front suspension on the McLaren MCL39 which has some intriguing detail at the inboard end, with the fairings flared upward in order to have an impact on the airflow passing by

There’s not a great deal of change on the Mercedes W16’s floor and ancillaries, such as the fences and edge wing, when compared with what the team completed the season with last year but still worthy of a look, especially as it will undoubtedly offer a frame of reference when they make changes in the coming days and weeks

The sidepod’s mid-wing has resulted in the P-shaped inlet on the Ferrari SF-25 being pushed back quite considerably for 2025, whilst we can also see the triangular endplate that forms a wingtip on the mid-wing. Also note the serrated trailing edge of the outer floor fence as it tapers down to meet the floor.

Sauber C45 with flo-viz painted on the front suspension that’s migrated down the chassis, towards the sidepods and will be monitored by the team to assess whether it’s performing as their simulations anticipated.

The Ferrari SF-25’s rear end, including a good look at the centrally dipped rear wing, bi-plane style beam wing and diffuser

The Alpine A525 with flow visualisation paint on the bodywork and suspension at the rear of the car

A nice overview shot of the McLaren MCL39 as it passes down the pitlane

A splash of additional colour on the Red Bull RB21 as the team apply flo-viz paint to the front suspension fairing and side of the chassis, which then moves down over the floor and sidepods

More flo-viz paint, this time on the Alpine A525’s rear wing mainplane

A close up of the Ferrari SF-25’s sidepod mid-wing and wing mirror arrangement, with the full width slat beneath the main mirror body and a vertical divisional baffle on the inboard end

Another angle of the Red Bull RB21 which shows where the flo-viz is tracking downstream off the front suspension

The back of a Mercedes steering wheel, showing the paddle shifters and the wishbone-style clutch paddle, which is furnished with a socket to improve feel

An overview of Ferrari’s rear wing, which differs in design when compared with the ones used last season, with the V-shaped mainplane the most notable feature on display. Also note the additional dots and chequered stickers added to the wing’s surface and being monitored by the rear facing cameras, of which Ferrari clearly have their own mounted, given the pods are sized differently.

The Williams FW47 with a huge amount of flo-viz paint daubed on it, as the team look to understand the new flow structures and ensure they’re performing as their simulations anticipated

A close up of the McLaren MCL39’s wing mirror arrangement, showing the how much the horizontal element overhangs the vertical and skewed element at the inboard end

Williams clearly have plenty of flo-viz paint at the ready, as they’ve also completely covered the rear wing and beam wing on the FW47 in order to check it’s performing as anticipated

A nice overhead shot of the Aston Martin AMR23 revealing some of its design features

A look at the McLaren MCL39’s rear end with flo-viz paint applied to the rear suspension and rear wing

The Ferrari SF-25’s rear end from above, with a Kiel probe rake attached in order to capture data from the various components and get a better understanding of how that interacts with the wake generated by the rear wheels

Ferrari’s mechanics remove the Kiel probe rakes from behind the front wheel assemblies and present the car without the nose in place

A look at the front of the Sauber C45’s steering wheel, with the various buttons, rotaries and switches used to control powerunit and chassis parameters

Flo-viz paint applied to the floor of the Alpine A525 in order that the team can get visual confirmation that it’s performing as anticipated

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