Also rare enough that you might not even know it exists.
We're not going to go so far as to call the Jaguar XJS V12 common, but in the world of twelve-cylinder two-door Jags, they're practically Camrys compared to the car you'll see here. Which is odd, because Jaguar went to quite a lot of trouble to build the XJ 5.3 C V12 to give up making them so quickly, especially when you consider what a massive success the XJ was in sedan form. But even if there were more of them, this would still be a very special car.
Fortunately, Harry Metcalfe happens to own one, and here we'll see him take it out and tell us all about it.