I have Peter Tuthill's 2 books on Kieft. Unfortunately he indicated that late sportscar history would be included in his 3rd book. To the best of my knowledge it never emerged ........ and I can find no reference to this car anywhere on the net. Is it there somewhere?
You know me well. It's rare that I find a puzzle that's not available on the worldwide web.
This car was the subject of a short thread on a well-known motor sports site - after a bit of discussion the puzzle image appeared on the thread showing the car as it is today. I believe (without checking) that the image was posted by the present owner.
The builder had close connections with the Kieft workshop.