Nissan North America hopes that the door to reaching consumers will come from a set of keys.

The New York Times has reported that in order to promote the new push-button ignition system on the 2007 Altima sedan, Nissan is scattering 20,000 key rings in bars, concert halls, sports arenas, and other trendy social gatherings in seven cities.

This experiential marketing campaign, conceived by the True Agency in LA and aided by Vibe magazine and Guerrilla Tactics Marketing, part of Inner City ...