Renault continued to astonish everyone with its frenzy developing rate and brought another new front wing spec at Valencia street circuit . The new spec was nevertheless not entirely new but a modified Turkish version with the outer cascade yellow plane part to be rejected . Furthermore the outer vertical fence was raised in height significantly and gained a red winglet in an attempt to improve airflow around the front wheels.
Canada is a special circuit as it requires low downforce set up and good braking stability and so Renault equipped both Kubica and Petrov cars with new front wings to help them increase the top speed but in the same time to provide enough grip at low speed chicanes and turns . The new wing of decreased chord had the upper cascade winglets rejected .
At Turkey Kubica raced a brand new and more complicated front wing ( the sixth spec since car launch ) with totally revised endplates and cascade winglets which provided a higher level of downforce . Petrov on the contrary raced Kubica’s spanish version for the first time as for Monaco he raced the Chinese spec .
A new front wing was used by Kubica only at Spain while Petrov instead used the old Chinese spec . Kubica tested also the old spec but preferred to use the new one and he commented that the new version may offer little to none gains according to the car set up . The new wing had a new slotted main plane close to the central neutral zone and revised second and third planes . Lastly the cascade wing’s outer under fin and the endplates winglets were also revised .
The fences under the nose cone , which create an air channel under the car , were revised at Spain having now a more sophisticated shape to improve front aerodynamic efficiency .
At China an inner horizontal floor extension was made in order to channel air more efficiently under the wing and close to the endplates .
The revised front wing’s endplates had a new higher and curvy outer winglet  extending up to the cascade , which have now a smaller triangular endplate  instead of the previous rectangular one . Moreover under the cascade there is an additional small outer vertical fin  which increases air pressure . Finally the under wing vertical fence  was repositioned closer to the centre of the wing . All the changes aim to redirect airflow management around the frond tyres reducing drag .