To follow the Brilliant #2, I used Brilliant #3 Premium Metal Polish to refine the finish and get a glassier look. The thoughts on topping to protect then came along! The polish offers a little protection, but we didn't want to leave the owner with having to repolish the car in a few weeks - and by hand which would risk inflicting holograms... so more protection was sought after. After much mind searching, I came down on Collinite 476S. Yes yes, I know - yellow carnauba wax, will dull the shine... but will it? I decided to try it, and very very thin layer (invisible on the panel), buff off gently and the shine didn't yellow to a noticeable amount. Durable carnuaba wax it is!

: (Note, in the old days, the method of protecting these cars was Simoniz Hard Wax, a yellow carnauba, which is why I chose the carnuaba route.

)
Some pics of the car, finished panels, in the gloomy garage setting:
The halogen work lights revealed four streaks of scratches on the drivers door, where the owner had tried Silvo on the car... Several hits of Brilliant #2 later and they were gone!! Phew... (Alu shows up every imperfection, and when youre a detailer, this sees you constantly returning to areas, touching in, re-polishing, checking, re-polishing, checking... this is why I told the owner it wouldn't be done in a day!

: )
Sunnier weather on day 2 allowed the car to be rolled out of the gloomy garage setting for some better pics... and also a great opportunity to see the sunlight on the car, as this would highlight the finish I had got and show me how well I'd removed the swilrs. So, the polished side: