Hi i own three cars and do not drive the c63 daily this is my second c63 which i have had for two months it is 10 months old and i have done 2k miles it has the old ppack which has the sports suspension they no longer fit on the ppplus cars yet interestingly the dr520 has the same suspension as my car and i can say there is a huge difference between my normal c63 i sold and my current one this one handles much much better and if the current ppplus had the same suspension i would change it tommorow it has command hk intelli lights cup holder parktronic as options and the ppack which included lsd sports suspension composite brakes and alcantara steering wheel i am at a loss as to why mb removed this suspension from ppplus cars as it makes a huge difference to the handling.