The sheetmetal moncoque flew over from aviation, it was first adapted in to the Lotus 25 formula 1 car. It is still used today in lower prototype and formulae classes.
However, it is quite hard to find information on the particular subject when you are trying to design one. What is the benefit over a sheetmetal covered tubular spaceframe for example?
I hope we can discuss the advantages, disadvantages and design principles of this very interesting subject.
The Lotus 25 monocoque - drawing
The Lotus 25 monocoque
The famous Porsche 962 moncoque