The Final Frontier: Full-Train Subway Ads 4.97K Hamilton Nolan 06/29/10 10:02AM Filed to: Advertising Advertising Subways NYC Mta Target Marketing the end First, the NYC subways rolled out relatively small ads on the outside (and inside) of train cars. In addition to ads on all other MTA property. Now: the first-ever full-train subway ad is here. Get used to it. [NYCtheblog; Pics]