Hi Katie-
There's a possibility that this exists as an actual fontset, but it's far more likely that the designer(s) have altered the size, kerning and case of the characters to jazz the logo up a notch. If this is the case, then it's probably either Futura or Avant Garde, with the "W" inverted to create a more interesting "M". Both fonts are available from www.myfonts.com by numerous foundries, but unfortunately they're commercial.
Of course, if anyone else cares to put me right, they're more than welcome.
All the ta's,
-Tørnquist
still looking for this font...here's the vehix banner, if it helps.
Katie