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Williams has released images of its new 2017 challenger built to Formula 1's new rules.
The FW40, named to commemorate the Grove's squad's 40th anniversary, offers an insight into the design of this season's cars, which are expected to lap 4-5 seconds faster than last year.
New regulations will see aerodynamics play much more of a role with wider front and rear wings set to create more downforce and increase speeds.
Pirelli has also created new specification tyres which are 25 percent wider than last season.
Veteran Felipe Massa will lead the team after reversing his decision to retire following the departure of Valtteri Bottas to world champion operation Mercedes.
The Brazilian will be joined by Canadian rookie Lance Stroll, who graduates from the FIA European Formula 3 Championship.
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VIDEO: First look at the Williams FW40