A very Unusual Prototype.
This is the car that ended up with chassis number K-A2S4-97. As you can see, its a bit of a mish mash with Mk1 back lights but Mk 2 badging and trim. Essentially, it is a beige fibreglass bodied Mk 2 Cooper S with Riley Elf wood dash and red seats (I have seen colour images of it but don't have copies of them), at the front end it has a standard Mk 1 Morris Mini grille with Mk 2 S bonnet badge.
Thanks for picture & description to Simon Wheatcroft.