Little wonder, then, that chief operations engineer Mark Gillan says the team feels "very much [like] Williams, but with a smile, whereas the last few races last year were tough".
Gillan - a softly-spoken Northern Irishman who has also worked for Jaguar and Toyota - is one of the key new faces responsible for this turnaround in form.
The others are technical director Mike Coughlan and the new head of aerodynamics Jason Somerville with a concentration on good, solid engineering principles.
"Definitely where we were at was not a good place to be," Gillan says, adding that there was a lack of focus in Williams's approach to a race weekend.
New parts were being produced that were not of a high enough quality - and there were too many of them for the team to properly analyse their effect.
Classic F1 - British Grand Prix 1986 (UK users only)
So now, Gillan says, Williams are producing "less parts to a higher quality".
"We've tidied up components - the general finish is much better," Gillan adds.
"We're not bringing things to the track for small gains, and generally the direction of the whole company has been a lot stronger.
"Last year we had a situation where we had numerous different types of, say, a floor at the track. There were almost too many things there.
"And at a race weekend it's always very difficult to do aerodynamic testing because you have such limited track time.
"So we've got rid of that and said we're going to deal with fewer components of a higher quality, and make sure what we bring to the track is as well prepared and understood as possible. We ensure that what goes on the car is working properly and correlates well with the [wind] tunnel and safety."
In addition to this, communication between the track and the factory - of which Gillan says "there wasn't that much" before - has been enhanced and better use is being made of the team's simulator. Williams, despite being one of the first teams to employ what has turned into a must-have tool, were behind in this area, it seems.
“We're not content with what's happened. It's pleasing but it's not the endgame by any means”
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.