Gallery: Key F1 tech spy shots at the Spanish GP

New slotted bargeboards are available to Ferrari for the Spanish GP.

A look at the W08’s gearbox, crash structure, rear suspension and rear brakes during build-up.

Red Bull Racing RB13, shark fin and rear wing detail

A detailed look at the front wing introduced by Ferrari a couple of races back.

Scuderia Toro Rosso STR12 front wing detail

Toro Rosso’s new front wing, which features changes at the inboard end with revised flaps and an additional slot in the secondary mainplane surface.

A new rear wing installed during the car's preparation, utilising a straight mainplane rather the spoon one used so far this season.

Mercedes bodywork before installation, with the new longer shark fin configuration, which meets with the T-wing.

A detailed look at the bargeboard and sidepod region on the FW40.

Williams has taken a triangulated notch out of its shark fin.

The uber-complex area of the bargeboards and airflow conditioners on the W08, which has seen further optimisation in Spain, with ‘r’ shaped cascades added to the serrated forward footplate of the bargeboards.

The floor of the W08 has seen revisions in the area just ahead of the rear tyre for the Spanish GP.

The new nose, turning vane skirt and camera mounts can be seen in this image of the extensively-revised W08.

Another angle of the new bargeboards being trialled by Ferrari in Spain, featuring two vertical slots to improve the surface's efficiency.

Sebastian Vettel’s steering wheel with a new shorter clutch paddle, which supersedes the wishbone design and features a fingertip slot in order that the German gets a better feel for the clutch as it’s released.

A top-down view of the MCL32 ahead of the sidepods reveals the finger style appendages that emerge behind the bargeboards at floor level.

In introducing new bargeboards, the team has added a horizontal vane around halfway up these surfaces to better guide the flow. The footplate is separated into four surfaces in order to better control the migration and shape of the airflow under the car's floor too, hopefully improving rear end stability - an issue the drivers have reported in the opening races.

Scuderia Toro Rosso STR12, rear end detail

The team has utilised a swan neck design for where its new T-wing affixes to the shark fin, with the central of the winglet lower than the main loaded elements.

Ferrari has reverted back to its two-tier monkey seat for Barcelona. Note the complexity of the winglet stack at the outer section of the diffuser.

McLaren has made changes to the inner endplate canard for Spain, separating the surface into three winglets, while increasing their width and their angle of attack.

Ferrari has overhauled its T-wing for the Spanish GP, with the previously minimalistic single element swapped out for a dual element appendage complete with slots in either surface.