I was wondering that myself, perhaps the Owners club have a register and perhaps some who have responded on here can be added;I'm a complete newcomer to these forums.
The prototype..it does look new in that photo, still surprised by the mileage though!
The fastback being the last built, would that be 1973?
Its always amazed me how two otherwise identical models off a 'line' can run so differently with 'stat set at different temp. opening, I noticed this with two old XJ Jaguars I had; one would warm the garage nicely as you say!
Good to learn that quality rad and fans can keep the beast cooler anyway.
Paul/runt.[
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