Here's what I found on the web:
"It all started with XKD 513, a Jaguar D-Type short nose sold to the French Equipe Los Amigos for the 1957 Le Mans. Painted in the patriotic French Blue Livery it was taken by the duo Lucas-Brousselet to third place overall, in a glorious year for Jaguar (scoring and unrepeated 1st, 2nd, 3rd, 4th and 6th). Recording the average of 110.17mph was enough to leave in the dust a fierce opposition of Maserati, Aston Martin and Ferrari.
The car was then equipped with a new 3 litre engine to comply with 1958's regulation and registered its new entry for the French endurance with Jean-Marie Brousselet and Andre Guelfi. At 10PM, after many storms washed the track over and over, Brousselet lost control in the Dunlop bridge. The oncoming Bruce Kessler on his NART Ferrari could not avoid the collision with the blue D-type already overturned. Brousselet was dead.
The main section of the remaining car was put into storage until 1960, when Italian designer Giovanni Michelotti bought it and took it to Turin for a styling exercise. The new design sat on the undamaged original chassis and was completed in time for 1963 Geneva Motor Show where it won first place.
The car remained in Michelotti's hands until the end of the decade, when it was sold to Richard Carter and exported to the United States. Many sources state that the car was there used to raise money for an undisclosed church, taken around on a trailer. In 1973 Andrew Gortway took this rare beauty out of that misery but didn't have good plans for it. He knew in fact what the original chassis was and asked Lynx Engineering to revert it to D-type specs. Thankfully the delicate Italian coachwork was not scrapped and it was equipped with the mechanicals of a 4.2 E-Type (20 KOG).
It is not clear what happened to the car next, but it is likely to have remained in the U.K. with Bill Lake for another decade the least. This would be confirmed by D.C.'s picture, even if unfortunately he is not able to give any further detail about what he did on the car and when.
Michelotti's D-Type reappeared in France, where Roland Urban, the new owner, apparently managed to rejoin the car with some parts originally given to the Lynx replica. In 1999 the car was sold to Spain and it's not clear when it appeared for sale (and sold) on <link removed>.
Some sources report the car being now in Switzerland but what is confirmed is that Williams-Welding in Oxford reverted it to the original light metallic blue of when it was first exhibited at the Geneva car show back in 1963."
There's another writeup on coachbuild dot com:
"This is another bit of an oddball. A short-nose D-type that was raced severely [?] at Le Mans and even came home third overall in 1957. Quite literally as the car was registered in France, entered by a French team and painted in national racing blue: un léopard Français. But tragedy struck when the short-nose was entered again the year ahead in the epic 24 hours. Driver Jean-Marie Brussin crashed the car (according to Roland Urban he had christened it ‘Marie’) fatally. Brussin died behind the wheel and much of the car’s bodywork was scrapped at Le Mans. But the monocoque underpinnings, suspension, gearbox and engine, all to works-specifications, somehow survived. They ended up with Carrozzeria Michelotti in Turin in 1960.
By the time the car reappeared it was 1963 and the event was nothing less then the Geneva motor show of that year. The resurrected D-type starred again, now at Michelotti’s stand. This time it came with a totally different two-seater coupe body and the new monocoque was made of part steel, part aluminium. The car was sold to [a buyer in] the USA and supposedly was used there on the back of a truck to generate money for a church sect! [Again, I'm curious about which church/sect.] In the seventies it made its way to the continent again, ending up with Lynx engineering. There the engine, gearbox and suspension were removed to build a replica D-type using a complete new monocoque. [??] Supposedly the replica now wears the same chassis number.
The remainder was sold off together with the mechanicals of a Jaguar E-type registered 20 KOG (an unknown number in the DVLA-database now). It was built up again and registered with the E-type’s paperwork. The car was sold to Roland Urban in France who somehow managed to rejoin some of the parts that were used to build the replica short-nose D-type. What happened then is rather mysterious. According to a Google search it went back to America, but it could also be in Spain, while another one believes it is in Belgium.
Amazingly enough the car seems to have featured only once in a magazine article in 1983 and gets a mention in Urban’s ‘Les Métamorphoses du Jaguar’, but that seems to be it. Now we wonder...Where is this extraordinary Jaguar now?"
I can't vouch for the accuracy of the statements, but they seem to tell a similar story, at least up to the point where the Michelotti-bodied creation was used to generate cash for a religious group (which one, I wonder?) and then when the Michelotti body was fitted to an E-Type with the registration number 20 KOG.