Steve, based on the family history you should be good for 81...11 years up on your Dad and 22 years up on your Grandad.
Thanks for the reassurance, Peter - 81 will do me nicely!
Now, once again, back on Monty's topic - just backed Baby Blue (aka Katy, aka Morgana) into the garage after fine evening's drive of 70-odd miles. Out again tomorrow, and then it may be hood up as the weather deteriorates over the weekend.