Williams has doubled down on its insistence Formula 1 teams should be independent, saying midfield rivals' closer ties with manufacturers "dilute" F1 and helped push the Grove team to last in 2018.
The British team slumped to last in the constructors' championship in 2018 after a revival from 2014-2017 in which it finished in the top five each year and scored 15 podiums.
Speaking at the launch of her team's new livery and title sponsorship with ROKiT, deputy team principal Claire Williams said rival teams working with bigger operations contributed to that – but believes planned 2021 changes to insist teams produce more parts themselves would help protect independents.
"It's not easy currently with the way the regulations are for truly independent constructors to compete," she said when asked by Motorsport.com about her position on the rise of closer affiliations between teams in F1.
"That probably was one of the reasons we slipped back to P10 last year, based on the work going on between certain teams.
"However, that falls within the existing regulations. One of the reasons we're so supportive of the work the FIA and FOM are doing at the moment [is] in order to rebuild the parts list.
"We're very much advocates of that. We know that will change the landscape of F1 in 2021 and beyond to enable teams like our teams.
"We're incredibly proud of the fact we're true constructors in the sense we make all of our race cars in-house ourselves.
"Personally, that's the DNA of F1. It shouldn't be diluted by a diluted listed parts list. I'm very much looking forward to that change coming on board."
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