Glorious ! Is it still in the family? (That looks like a recent photo)
Sadly not! It went to the motor museum at Gaydon but then popped up for sale at a dealer a few years back which is where I grabbed the pictures from. Checking the 'tax' status today it's still on the road.
My grandfather kept it in concours condition but drove it like a nutter! He worked for the BBC and had various contacts at Jaguar ... it was reputed to have been built with a 'special' engine.