Same here ... wife likes the X way more than the Pathy. We have a Great Dane that we take along with us some times. Also have two girls, one is still in a car-seat, and a son in the Navy ... so even when everyones' together the X still has plenty of room for the family. Just remember, if the wife aint happy nobodys' happy (I think that comes from a country song or somethin').
I like what you've done to your Z, my '99 Cobra was pushing 436 on the dyno before Ford bought it back from me.