I will post more once I have driven more but it's immediately apparent that the road noise is fairly significantly quieter and the suspension feels a little softer. (Both drc and laminate glazing)
New pzero's in contrast to 10k conti's explain the road noise, but I hadn't expected the suspension to feel softer. Perhaps the springs stiffen a little with time and I can no longer remember how the old car was when new. Is that possible ?
Anyway and for what it's worth those are the only difference I can see a the moment (and the 200 extra revs before the redline
which I won't be using for a little while)