Links to a review of the original Leighton :
http://www.bra-cars.com/Leighton_-_A...both__web_.pdf
I can see the attraction of retaining the 2cv chassis, but the effort/cost taken to find/restore one (to retain the V5...) may well be less than that to use the bespoke chassis, particularly given the handling benefits of the Leighton suspension mods.