hey PC Valkyrie did u notice the new SL65 or SL55 switch from the previous 8 pistion front back to 6 piston front after the facelifts but now with composite brake discs. The front brakes on the S65 looks very different, they have a twin calipar setup on each front wheel instead of having a 6 or 8 pistion front calipars. I think they offer greater contact area with the disc.

Have a look at the photo, how many piston does the S65 front brakes have?