D8,
My understanding of the Z process, is that the Z1, (or equiv.), helps form the first "layer" and allows "bonding" of the Z2 et al, subsequent layers.
But, that could be mkting bs...
That P21S stuff may be in the same ballpark as the Z1, as there is really very little that is "brand new" under the sun.
I've never used ZFX, because "speed" was not a concern. My Z2 lasts a long time, though I do use Z6/Z8 regularly between the increasingly infrequent Z2 apps.
Hey, yourCEO will be dazzled and most of the gentler gender I know, are not wax job Xperts/critics, anyhoo....
I really don't think some weird chemical process is going to rise up off her car and walk away with the paint.
I think ya'll be Fine, Fine, Fine.
BR,TheOl'Knucklehead