I did check the spelling on Wikipedia before I posted my message, as I too was more familiar with the 'Biscuter' spelling. The car originated in France in the late 40s, built by Voisin, and called the "Biscooter'. From 1953 it was licensed to a Spanish firm in Barcelona. The changed the spelling to 'Biscuter', more in keeping with Spanish custom.
It is how the French vendor spells his car(s) for sale. Correctly, against my initial doubts. Interestingly
3-wheeler/dot/com hasn't listed it at all.
Let nobody say that the RUMcars Forum isn't a source of knowledge!
Right, I need to tend to my Noble 200 now!