The agency won the Campaign of the Year prize at the ceremony, run by the Newspaper Marketing Agency, for the Honda executions "sweetcorn", "lightbulb" and "fish".
The £20,000 cash prize was presented to the W&K creative team Sam Heath, Chris Groom, Sophie Bodoh and Sean Murphy.
Gerry Moira, a judge on the panel and the chairman and director of creativity at Euro RSCG London, who nominated the ad, said: "In a newspaper full of shiny showroom cars, these ads stand out. OK, they’re not burdened with having to sell low APR rates and finance packages, but they exploit and explain their brand messaging with great style."
The Art Direction award went to Mark Reddy and Rich Kennedy at Bartle Bogle Hegarty for their Audi A1 execution "a big idea condensed".
Anthony Stamp and Richard Yates, from VCCP, won the Copywriting award for their "To fly. To save" campaign for easyJet.
The Digital award went to Albion and Walker Media for the Air New Zealand "forget everything you know about flying" work.