Quick question

[Trevor 57]

I met a bloke recently who bought a new XY GS, 351C, 4 speed, 9 inch, etc, he still owns it, all still original, number plates and all, was the family car up until 1988, he has it insured for $10k, I told him he should do some research, he might be surprised, he seemed surprised that I thought it was worth more than $10k

Thoughts on value etc please