The agency team created a spot for Honda, "bacon", that was named the Winner of Winners at the 2009 Annas, held on Wednesday night at the Mall Galleries in London.
The work, which celebrated the reopening of Honda's Swindon plant, was among 68 ads nominated for the Annas by a judging panel featuring creative directors including VCCP's Darren Bailes, Tim Delaney of Leagas Delaney, Nik Studzinski of Mother and Simon Learman of McCann Erickson.
Bailes described the winning ad as "news in the form of advertising".
Other winners included Publicis in the Copywriting category for its work for the Children's Workforce Development Council, Bartle Bogle Hegarty in the Art Direction category for its "FA Cup milkmen" ad for ITV, and Agency Republic and i-level in the Online category for their "smoke-free generation" work for the NHS.
Leagas Delaney and MPG scooped the Topicality Award for their "solid" activity for Nationwide, a campaign that focused on the dependable nature of the building society during the banking crisis, while W&K, alongside Carat, landed an award in the Creative Media Partnership category for the "Saturday is breakfast day" Lurpak work.