303 Aerospace Protectant is quite amazing. It brings back the ‘black’ of the rubber and plastic on the DeLorean, and protects it at the same time.
It’s especially noticeable when you give your louvre / sunshade a good spray-down, then LEAVE IT for a day or two to soak in, then wipe it down.
Although it isn’t cheap, it’s a great product that many DeLorean owners recommend.
Made by 303 Products