Chris Bartram ( snipped-for-privacy@delete.me.piglet-net.net) gurgled happily, sounding much like they were saying :
Yes, and no.
Xs remained OEM fitment long after the ZX and XZX had all but disappeared. All three are still available today, albeit in the classic range.
Ain't no doubt that an X on a Beetle, though, is going to be a proper Beetle. Gawd knows how you'd get 85k out the rear tyres on one of them, unless you stopped dead and picked it up by the rear bumper at the first sign of a slight bend.