Really excellent product, I used it to restore the previously black trim on my Alfa 159 which had sunbleached to a muted grey colour. The car overall look of the car has been transformed. I used it on the exterior door pillars, wing mirror surrounds, roof bar cavities and the trum under the bonnet (where the wipers are) and it is phenomenal in terms of difference. Not sure on longevity yet but I have had it on for a couple of weeks with no deterioration at all. I also used it to restore the faded AC vents inside the car (using a cotton bud). Overall an amazing difference. Thoroughly recommended. Please note, this does nothing to rubber what so ever, so if you are looking to restore anything other than hard plastic (for example tyres etc) then look for another product.