Interesting ad. I wouldn't be at all surprised if it sold at or near to the asking price as these little Spyders have the ability to drop jaws like nothing else I've ever come across, which does make them very desirable.
Thought I'd just work out the engine power in BHP from the figures given - 160CV (Steam Horse) and 11Ch (Horses) road tax bracket. I found this simple calculator online if anyone wants to work it out for themselves...
http://www.citroen-ds-id.com/gen/Gen_CV_Calculator.html
's funny, it's not like the French to complicate things unnecessarily.