I had the chance to have the S8 detailed yesterday and have to say I'm very satisfied with the results
The guy was very complimentary about the paint condition and said it's been well cared for during the last eight years and has had no repairs done, or ever likely to have been through a car wash. He said the Audi paint was great to work with and the session was relatively trouble free compared to some cars he gets to work on. A lot of work was done on the lower areas of the car and the "gravel rash" from 120,000 miles of motoring has all but gone, I'm more than happy with the finish achieved.
He spent in excess of twelve hours on the exterior paint, trims and wheels and I've done the interior leather with Gliptone cream, hoovered it and cleaned the windows, time to relax and admire now
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Audi D3 S8 - 2007 - V10. B&O, Phantom Black, black and silver interior, and still completely standard with everything working as it should
Audi TT - 2015 - Ultra