Vehicle advertising is a marketing tactic that's useful in helping to create a generous number of impressions, and help to boost the sales of a business. Mobile billboards and taxi advertising are two out-of-home advertising ways that businesses can display their messages in a rapid and constant way. Both mobile billboards and taxi advertising rely on the motion of vehicles to spread the advertising around evenly. With internal knowledge about geographic and demographic statistics, both advertising channels have the potential to deliver well dispersed ads in a given region. Effective car advertising is concerned with placement, area, and clear display of the messages and visuals working together to influence a viewer. Let's look at the advantages and disadvantages for both mobile billboards and taxi advertising, and why both channels are used to generate a positive advertising outcome.