C5. Don't look for anything else.
I had brand new diamond cut genuine Honda Speedlines for my CRZ and as soon as they were fitted I panel wiped them and applied C5.
12k miles later and a year later I still hadn't had to use anything other than shampoo and a wash mitt on them.
You just won't need to use wheel cleaners or anything.
Its got the highest temperature resistance of any product out there as far as I know at around 350degC
Hot sintered brake dust can't penetrate the barrier it forms.
Awesome stuff, buy it.
Just don't forget the prep first. Panel Wipe is essential to remove any greases or polishing oils so the C5 bonds perfectly.