A few years ago, Subaru introduced a self-cleaning function as an April Fool's day joke. Now, Nissan is actually testing an innovative paint technology that promises to repel mud, dirt and rain.

The "super-hydrophobic and oleophobic paint" has already been applied to a Note prototype and the company will begin testing it at their European Technical Center to determine its real-world effectiveness as a potential aftermarket application.

Called "Ultra-Ever Dry," the coating works by creating a protective layer of air between the paint and the environment. Nissan says this "effectively stops standing water and road spray from creating dirty marks on the car's surface."

According to Note Chief Marketing Manager Geraldine Ingham, "The Nissan Note has been carefully engineered to take the stress out of customer driving and Nissan's engineers are constantly thinking of new ways to make families' lives easier. We are committed to addressing everyday problems our customers face and will always consider testing exciting, cutting edge technology like this incredible coating application."

Gallery: Nissan testing a paint that repels mud, dirt and rain [video]

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