Is the car wash a thing of the past? Nissan is testing a self-cleaning nanotech paint that repels dirt. Nissan describes it as a superhydrophobic and oleophobic paint, meaning it repels water and oils. A Nissan Note subcompact is being tested in Europe with half the car treated and the other half with just its normal paint. Photos and a Nissan video show the treated half is markedly cleaner. Nissan says it’s the first automaker to use the technology, called Ultra-Ever Dry, on car bodywork, creating a protective barrier between the car paint and the outside world. It stops most water and grime from sticking and creating marks on the car.