Hi, Just taken me 52 plate S8 for new pads and been told that the rear calipers have seized! I'm wondering what the best way to go is - should I look at replacing the calipers and discs? Are any other models compatible with the A8/S8? There doesn't seem to be many of these cars about so was hoping that maybe the A6 stuff would fit! Any help or advice would be appreciated. Thanks, Paul Green.