Pre facelift dolphin was a different colour, cant remeber name, but it was more "gun metal" rather that the blueish tint thats in Dolphin.
I believe Dolphin came in around mid 2002, wont find it on an S3 before this time.
S3(225) - Dolpin Grey | Leather/Silver Alcantara | Bose | ViperDV | Samco Hoses | Eibach Pro-Kit | H&R Spacers | Brembo GT kit | AreoWipers | BlueTooth | Dension Icelink | New engine, Clutch, Turbo, Water pump thanks to Cambelt @ 79,000 miles | New short engine thanks to ****ed valve 22,000 miles later!