Both Ad Hunt and Ad Blather linked to this viral for Honda, created by Wieden + Kennedy. It has a nice uplifting feel to it, and it's especially "uplifting" at the end. I thought it was pretty good, though I couldn't shake what one person wrote in Ad Blather's comments that it was an example of a huge budget put behind a kind of mediocre idea. That's fair enough, since the concept itself isn't exactly earth-shattering. Still, I think it works in the execution. The end of the spot leads you to Honda UK's Power of Dreams site.
