Williams is testing a radical rear wing design during the opening day of the post-race at the Circuit de Barcelona-Catalunya.

Alex Lynn took to the circuit with a rear wing which featured additional wings above the standard design. The front wing also features some additional components, with Williams telling F1i the designs are "to gain a better understanding of the car aero balance over a lap" and relevant to both this year and 2017.

The design is not legal under the current regulations but teams do not have to pass FIA scrutineering during testing and can therefore run whatever they choose.

Williams has yet to score a podium this season, and is currently fourth in the constructors' championship behind Mercedes, Ferrari and Red Bull.

©XPB Images

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Andrew Lewin

Andrew first became a fan of Formula 1 during the time when Michael Schumacher and Damon Hill were stepping into the limelight after the era of Alain Prost, Nigel Mansell and Aryton Senna. He's been addicted ever since, and has been writing about the sport now for nearly a quarter of a century for a number of online news sites. He's also written professionally about GP2 (now Formula 2), GP3, IndyCar, World Rally Championship, MotoGP and NASCAR. In his other professional life, Andrew is a freelance writer, social media consultant, web developer/programmer, and digital specialist in the fields of accessibility, usability, IA, online communities and public sector procurement. He worked for many years in magazine production at Bauer Media, and for over a decade he was part of the digital media team at the UK government's communications department. Born and raised in Essex, Andrew currently lives and works in south-west London.

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