I agree with the seat - back to Ford.
Polish - My car is Sea Grey and I use Collinite 476.
It will give you a nice wet look and last really well. It is an American polish favoured by a lot of professional detailers. It is also used on boats so has to withstand harsh treatment.
It certainly makes the flakes in the paint sparkle.
I will admit thatI clayed and machine polished my car when I got it to remove all small scratches and imperfections before waxing which will of course help with the final result.
57 Titanium 1.6 110 DPF, X Sport pack, panoramic roof,Sony 6 CD changer with voice control bluetooth.