A selection (not exhaustive) of the updates used by each team can be found below:
The silver arrows seem able to keep their opposition at arms length with predictable ease. However, the development race of F1 means that you can't rest on your laurels and even the smallest of changes are considered in the pursuit of performance.
|Austrian GP spec on the left, Canadian GP spec on the right
The Scuderia have once again made changes in the rear tyre deck region, albeit this time in a redesign of the vertical floor strake, having previously utilised a singular element the team adopted a twin strake configuration (marked in yellow) for the Austrian GP.
This area is quite sensitive and so changes in the region are usually a compound effect, where one change usually leads to another a few races later. Ferrari last made a change in Barcelona, with the addition of two additional floor slots, ahead of the main dog led slot which has adorned the floor for some time, all of which look to manage the effects of tyre squirt.
McLaren, Toro Rosso and Lotus already season as all the teams look to improve flow in the region. The wake generated by the front tyres can have an impact on the flow quality provided by the splitter, especially in transient conditions, as the tyre deforms. These, albeit small winglets help to condition some of this errant flow, re-energizing the flow by virtue of the vortex they'll shed.
Williams had a number of updates available to them for the Austrian GP which I covered here for Planet F1. During the first day of the post race in-season test the team sparked controversy when the used a winglet and side skirt that would be illegal in race conditions. I explained why they were doing this for Planet F1.
The smaller Brackley based outfit delayed their 2015 challenger in favour of a mid-season introduction of a 'B-Spec' upgrade. This allowed the team to spend additional time in the Wind Tunnel facilities in Cologne where they are now taking advantage of a 60% model, whereas previously they'd struggled along with an antiquated tunnel and 50% model.
Contrary to popular belief the updates run by Force India in the post Austrian GP test were only part of the revised VJM08 package with a new monocoque and other parts available in Silverstone. The star of the show was the teams new nose design, which features two 'nostrils' (pictured above), allowing airflow to pass from the upper surface below the nose. I'm still to be convinced this is the actual nose that we'll see in Silverstone but rather a placeholder that simulates what the new nose intends to do, if that is the case it should bring a fairly substantial uplift in performance. How much of an uplift will depend on the quality of the other changes that the team make, increasing performance up and down the car.
I look forward to seeing the rest of the 'B-Spec' components when the car rolls out at Silverstone, especially as both Ocon and Wehrlein were particularly complimentary of their time with the VJM08.
Albert Fabrega this winglet is hung off the strake below and helps to shape and extract the airflow beneath the wing in a more controlled manner.
The Italian based 'junior team' introduced several updates to the STR10 for Austria, starting with the front wing I covered for Grand Prix Times.
At the rear of the STR10 the team have used the conjoined wishbone idea first used by Mercedes on the front suspension of the W05 and repurposed it. The shape of their wishbone was already shaped to minimise the effect it has on the brake ducts and gap between the diffuser wall and tyre, however, the new shaping goes a little further in achieving their goals.
Aside from their new nose, McLaren had a few new parts for the MP4-30 which were only available to Fernando Alonso, I covered these for Grand Prix Times.