unknown ABC

i think there is too much christmas spirit  here paul.  that aside you are back to your first class walk or second class ride using what you have    at least he chose the correct engine

Being as serious as one can about such a contraption, the suspension merits a mention.
Each wheel is connected by quadruple sets of leaf springs, clamped at both ends as per Sopwith rear springs, to its frame or front-fork members: there isn't a pivot or hinge in sight in any part of the suspension-system.
Maybe this conferred a smoother passage over French pave, but might have made for unsettling cornering.
The requested price of Euro 7.5k for this device matches its overall April 1st. image.