Barcelona test, Day 2: Lifting the lid on F1 2018’s tech updates

This shot shows the level of complexity in the multi-element deflectors.

A clear look at the slotted deflectors and bargeboards.

Kiel probe arrays mounted behind either front wheel assembly as the team monitors the performance of the front wing and the wake shed by the front tyres.

A look at Red Bull's sidepod deflectors.

Behind the barriers, but a great top down shot as they stop the car in the pitlane.

Note the angles at which the Kiel probes are mounted, as Williams aims to achieve the best data acquisition from them.

McLaren sprayed flo-viz paint on the halo to evaluate the aerodynamic fairing that's been placed on it.

A pair of Kiel probe arrays mounted behind the diffuser as the team make sure that their simulation data matches the real world data, whilst also trying to understand how they can add more performance.

A good look from above shows the extra complexity of the bargeboard area this season.

Another shot of the MCL33 with flo-viz applied to the halo, note the vertical fins that wrap around the side of the safety structure.

A closer look at the Kiel probe array mounted at the rear of the W09, see how the Kiel probes are angled in different directions in order to capture data. Also note the lower T-Wing that's been added and wasn't on the launch car.

The tips of the sidepod deflectors have been treated to some metal inserts, as the team look to limit their deflection as speed builds.

The RB14 sporting a Kiel probe array around the sidepods and engine cover.

Flo-viz applied to the front suspension as the team assess its aerodynamic performance.

A close up of the narrow sidepod inlet and multi element deflectors and bargeboards.

A huge Kiel probe array mounted ahead of the rear wheel focuses on studying the airflow in order that the team knows their simulation methods correlate with the real world data.

A close look at the triple-element halo fairing that Force India introduced on the second day of testing.

The Kiel probe array is to assess the airflow at the rear of the car. Also note the Go-pro camera mounted on the right rear wing endplate as the team gathers footage it can study later.