I absolutely love the video below. It isn't that it's so useful that people will love it; as used car buying tips go, it's rather light on real zingers or anything outside of common knowledge. It isn't the production quality; this is a well-made video, but nothing outstanding compared to other motion graphics.
The thing that makes this video stand out is that it's a branding and marketing machine that will keep on giving for years to come. First, it's very sharable. It's not quite good enough to be a viral video, but it will do its job and get some views. Second, it's a search engine golden ticket. It will be visible on searches for terms like "buying a used car" and "used car buying tips" and will stay visible for a long time.
Finally, it's a strong branding message that has very little to do with the brand itself. It's loosely related, of course, but the relationship is not a part of the story. The company will reap the benefits of being found by new people for a long time.
Here's the video itself: