Williams, along with Force India, received the latest Mercedes customer power unit upgrades for Montreal which allows them to use higher power outputs for longer, which undoubtedly helped Lance Stroll on his way to his first points finish with a series of overtakes throughout the race.
Chassis-wise, a few new pieces were installed to both FW40s after Felipe Massa provided initial feedback on Friday.
The Circuit Gilles Villeneuve is tough on brakes so the team decided to use a more traditional front-brake duct layout rather than their very effective existing solution that only allows air into the cooling system through the inside face of the wheel shrouding.
The additional D-shaped inlet on the external side of the shrouding induces more drag but its diminutive size compared to other designs shouldn’t be too costly.
Aside from cooling, further revisions were made to the car’s aero-package, particularly to the bargeboard area. It’s hard to spot due to the copious amounts of black paint the team use in this region, but Williams have a slender turning vane behind the main bargeboard which was enlarged for Canada.
A smaller secondary bargeboard was also installed to help shape the airflow around the sidepod and along the sides of the car, while further geometry changes were visible along the floor’s periphery.
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