Nissan United, a newly-formed Omnicom Group-run multi-disciplinary team of agency leaders based in New York handling Nissan cars has announced the appointment of Antonio Navas as its first chief creative officer. As CCO of Nissan United, Navas will oversee all global Nissan creative and content from both Omnicom and non-Omnicom agencies. He will be based out of the agency’s New York headquarters.