Look at this mod:
http://fallout3.nexusmods.com/mods/18094
While not finished by a sight, I think a drivable vehicle mod, especially one with the storage capacity it implies would be epic for New Vegas. In DC. not so much because of the interior "exterior" ruin cells taking up the juiciest quarter of the Wasteland. Frankly it would be a lot more enjoyable for me as a player to drive around the Mohave, than do the Corvega mod any day of the week. And its be easy to reach any place on the world Map short of Deathclaw Promontory and Interior Vegas Cells
Question is, could it be ready for prime time in Vegas?