TESTING PROCESS
TO DETERMINE which interior trim cleaner is the best, we lined up a selection of products at different price points and noted how effectively they cleaned the inside surfaces of our test car. We paid attention to how long it took to clean each surface to a respectable standard with each product, aiming for a restored natural finish, rather than a dazzling sparkle. We also noted the different types of surfaces each product could be used on. And as always, value was a key factor.