| I have got Black Wow, and it is fantastic!! You only get a small bottle, but a tiny pea sized amount will cover a good area (eg complete wheel arch and a bit). The secret is to use very little and work it in. It works better when it is sunny/warm.
I should think the bottle will last several years, I have done mine once so far, and that was several weeks ago, and after a wash it looks like new.
I also tried it on my brothers old Volvo which had some black trim which looked really grey and horrid. Nothing he had tried on it worked, but the Black Wow brought it up like new.
It is more time consuming to apply, but worth the effort.
You also get a masking card with it specially for Mini's.
Changed my Mini to a Clubman and my home to Total Mini .com | 
