That is good to hear
but I can't imagine many ZT's or 75's will left by the time they reach true classic status, the strict MOT guidelines will see to that; 20 more years will see further changes.
All the old 40+ classics that are around today didn't face all these strict guidelines, plus the cars were so much easier to repair and maintain; that's what has kept them on the roads all this time.
I hope I'm wrong.