My wife's '06 coupe has 55K on the clock and am wondering if there is anything we can do to the suspension to gain some additional comfort? Are there any rear struts (which seem to be the most harsh) that are noted for providing a better ride? By comparison, my '73 911 is 'plush' in the ride department. We recently put on Eagle GTs in place of the OEM Conti's and that was a big step in the right direction, but would like to do more, if possible. Thanks.