While I'm messing about with spreadsheets, does anybody fancy a guess at the world's most expensive unit, and its cost?
Without looking at a spreadsheet
And for another one, the world's most expensive tank, and its cost.
Don & Andy, you probably know these off by heart - but neither was what I thought.
Closest to both gets an honourable 'mention in dispatches'.
Shall we say 48 hours?
Richard H