Gallery: Top tech shots from the Bahrain F1 test

A shot of the Ferrari with sensors hung from its diffuser, with F1 teams still coming to terms with the huge volume change that is now allowed within the regulations. The data gathered here could help with any updates that the Scuderia has planned going forward.

Mercedes mechanics await their driver in order to practice a nose and front wing change.

Using a cross-shaped sensor over the end of the exhaust's tailpipe, the team measures the exhaust plume's trajectory and velocity. It also installed a new monkey seat, which not only features the main structure but a secondary winglet mounted between the two endplates that make up the primary structure.

Mercedes running the W08 with a kiel probe array mounted behind the front tyre as the team conducts correlation work and uses the data gathered to help understand the deformation of the front tyre and how that has an impact on the surrounding airflow structures.

Another angle of the W08 showing the team utilising kiel probe arrays behind both front wheels in order to collect data about the flow field. Note the absence of the T-wing, which remained off the car for some time, perhaps as the team assesses the impact it will have on performance should the wings be abandoned when the teams next sit down for a Strategy Group meeting.

Esteban Ocon, Sahara Force India F1 VJM10

Esteban Ocon at the wheel of his VJM10 has a kiel probe array mounted behind the rear tyre and diffuser, as the team evaluates how the flow field has changed around the car since the optimisation parts were added for the Bahrain race.

Forward and rearward-facing IR cameras are mounted in the roll hoop positions on the W08, used to collect temperature data on the tyres as Bottas puts the car through its paces.

Sauber made changes to its wing mirrors in Bahrain, setting them further away from the cockpit but reducing their height.

The RB13 is shown with a kiel probe array mounted between the front wheel and floor as the team looks to understand the flow structures created by the deformation of the front tyre.

A strange occurrence as Mercedes runs the W08 with a new enlarged cooling outlet yet devoid of wastegate pipework, which would ordinarily finish where the rings attached to the main exhaust outlet reside.

The VJM10 with a kiel probe array mounted behind the rear tyre and diffuser as the team collects data on the updates introduced during the weekend.

Kiel probe arrays mounted behind the front wheels of the W08, while the team runs without the T-wing.

A great overview of the title-challenging Ferrari. Note the team is running with a standard floor, devoid of the cooling conduit and raised platform seen during the GP weekend.

Red Bull testing in a higher-downforce configuration complete with a two-tier monkey seat.

The Williams with a kiel probe array between the front wheels and floor, collecting data on how the flow structures change as the tyre deforms.

The W08 is shown in maximum cooling configuration, with enlarged cockpit cooling louvres, a shark fin cooling chimney, an enlarged cooling outlet around the exhaust and slotted bodywork around the upper rear suspension elements.

Another look at the two-tier monkey seat at the rear of the RB13, installed to check the high-downforce credentials of the chassis.

The FW40 with flo-viz paint applied to the side of the chassis in order that the team can better understand how the suspension elements interact with the flow structures.

The W08 outfitted with a large kiel probe array that stretched right across the left rear of the car, just ahead of the rear wheel.

Red Bull using a pair of much larger kiel probe arrays behind the front wheels. Note the singular stanchions with a further three kiel probes mounted on them.

Sergey Sirotkin, Renault Sport F1 Team RS17

Renault once again testing the blown axle (arrowed)

A collection of sensors placed in the path of the rear diffuser in order to understand both its aerodynamic behaviour and that of the tyre alongside.

The C36 was fitted with an additional periscope either side of the engine cover in order to improve cooling of its 2016-spec power unit.

The much talked about deformable floor being used by Ferrari. Note how the forward scroll and reward tyre squirt slot have drifted from their usual position when loaded up (arrowed).