Time for the Tatra 603 then.
The 603 had peculiarities other than having an aircooled V8 mounted at the back.
Look at these three, noting that the kids would be 70-odd by now:
They’re in chronological order and they show the original model and its two facelifts, the 2-603 and 3-603. The unusual thing is that whenever the factory got hold of a 603 or 2-603 they usually brought it up to 3-603 spec so there are now few cars left with the original or the first restyle.