Embedded above, the "ad" is accessible through cars-n-deals.com. The link first appeared on the Twitter feed @ChromeLeaks, which Mashable reports was being promoted at WonderCon in San Francisco over the weekend.
Without spoiling the experience by telling you exactly where, a single frame of the video contains a URL to a shockingly cool extended clip from Cars 2, posted on YouTube as an unlisted video. If you're stumped, call the phone number shown on-screen and listen closely.
All very smart. Let's hope this is part of a bigger campaign and there's more videos to come. I love the whole tasteless dealership commercial shtick. A character cameo with one of the lemons would be hilarious. And make it more challenging.