I got my latest LS400 Supaguarded (before I joined here...) and (although very expensive) worked well, nice shiny car.
Put in through automatic car wash (you know, the ones with the huge flail-like devices which 'thrash' over the car - I know it's anathema to some here but bear with me...) and the pristine finish wasn't harmed. But washed the car myself and there are those tiny swirly scratches :tsktsk:. I used the Supaguard stuff in the wash, a sponge, hosed off, leathered the wet car. No polish.
I've now used some of the Paintseal Cream supplied, which has helped greatly but hasn't eliminated the scratches.
Did I do something wrong in my own washing of the car? What actions do you now recommend to get the perfect (to me, anyway) finish back, if I can?