Viral Video: Car Ad Plays Trick On The Eyes Of Millions

(CBS SF) -- While the photo of a dress became a worldwide phenomenon, a car ad posted on YouTube is also playing a trick with people's minds.

The ad for a Skoda, which is not available in the United States, has already netted more than 3.5 million views in less than two weeks. It starts off with a blue (not white and gold) hatchback in a London neighborhood, telling the viewer "Keep watching closely. You won't believe what happens."

We won't tell you what happens, but you can see the video here:

According to AdWeek, the ad was produced by the AIS London agency and directed by Luke Ellis.

Did you notice anything? Let us know below.