It shows how 2 cars from the same few months of registration
can have very different outcomes 40 years later. Saying that, I don't know
if the HPE has been restored at all.
In my, albeit limited, knowledge of reg allocations, 'blocks' of numbers were
issued to various dealers in an area. So it would be unsurprising to find
a CLT on another make locally. Blocks of 20 were common in my days in Kent.
I remember, back in Johannesburg in the mid 80's, seeing 2 Datsun Pulsars
parked on the same street with consecutive plates, both being some 10 years old! One of them
was ours.