White Edition – Shampoo & Convertible Top Cleaner. For the paintwork or the convertible top: Using Porsche shampoo and convertible top cleaner you can clean and protect your vehicle. Regular cleaning is the basis for all other types of vehicle care. It protects the paintwork and keeps your Porsche looking its best at all times. This product removes dirt and prepares the surface for polishing and waxing without damaging existing wax or protective coatings.