The bright blue zymol cleaner wax (circa £13) is made by TurtleWax under license. I imagine the £5 car shampoo also is, but not 100% certain.
ive never used used the "expensive" zymol waxes, so at the moment my opinion (if i really have one, having never used the stuff!) is swayed by the many people on www.autopia.org who have.
it seems that a lot of people are convinced by perceived value... ie if it cost more it must be better.
From what i can deduce from the information available to me from places like autopia and www.gurureports.com zymol wax has virtually no durability (3-4 weeks max) and there are waxes that are certainly their equal if not better for WAY WAY cheaper.
however, you guys who have spend your £££s buying your starter kits are in a far better position to judge than me. personally, Ill stick with my S100 (like most of the giys on autopia). Now S100 I CAN testify to!
BUT if youre happy with your zymol, all the best to you... at least your hands will smell of coconut when youre finished.
best wishes
face