It's been pointed out to me, quite correctly, that "prototypefan" answered my puzzle in full, and I then moved the goalposts, So the point is his without delay.
The car was driven in the 1952 Le Mans race by Trintignant and Rosier, but retired. It then made its way to the USA via the usual suspects (Chinetti and McAfee) and was badly damaged in a crash. Hence the Devin body. I believe when found it was V8 powered, but it will be reunited with its original engine. It's all on the web somewhere, but I'm now off to work, so it'll have to wait.