Interesting question, D-Type........................
Back in the day, the 1950's and early 1960's, my automotive interests were much different than they are today.
I was an avid reader and sometimes collector of just about every US automotive magazine of the era and if I could not afford to buy the magazine, I haunted my local grocery stores/book stores that stocked Road and Track, Motor Trend etc. etc.
This kind of vehicle is not, and has not, been something of interest to me since the late 1960's but I distinctly remember the photo, probably of the original car. As I do not use SBI, I will never solve this puzzle, I am not even trying.
Not to be a "Grouch", but sometimes even "Carnut" goes a bit far in testing our knowledge. Not often, but sometimes.
Hopefully, I am not offending anyone.
Bill