Jeff Gordon's Pepsi MAX-sponsored prank on a car salesman has received over ten million hits on YouTube, yet many viewers aren't sure it's real.

The video went viral two days ago when the four-time NASCAR season champion dressed up in a disguise, sporting a wig and facial hair.

Gordon then goes "undercover" to a car dealership where a salesman notices the incognito race car driver scoping out a 2009 Camaro.

Jeff Gordon played the role of "Mike," and is wearing sunglasses reportedly equipped with a video camera.

The salesman approaches him and convinces him to test drive the Camaro.

The car happened to be equipped with a camera as well, which gauged the reactions from the salesman as Gordon drives like only a professional can, but also raises some questions about whether the clip was fake.

As Gordon whips around turns and scares the salesman with his driving, he ends the video telling the scared salesman that it was a prank. He admits to being Jeff Gordon undercover.

As far as the video being real, a Pepsi spokesperson told ABC News that a stunt man actually did some of the driving, seemingly implying that it isn't.