The present invention relates to a direct digital wireless marketing system and method. With the invention businesses can contract for advertisements to be transmitted from a radio data link covering the area surrounding the business and reaching multipurpose computers inside the cars as they travel within the area. The ads are in a digital format for display on the in-car computer. The in-car computer filters the ads transmitted from the businesses for only preselected items needed by the user. The businesses pay for the ads through the service provider that also setups the hardware and software. The businesses upload data regarding the ads they are transmitting to the service provider, so that the filtered advertisements are easily selected by the user via the service provider. Ads that appeal to the user can be stored for later use as needed in the multipurpose computer.