But someting else to show here, actually my 1st modification with aerodynamics in mind:
This is to cover the air intake below the nose of the VM. The original (missing) intake would have reduced the ability to cross steps in the roads which we have plenty of them in German bicycle paths. Well, any effect too small in order to be noticeable, but It works nicely as an air intake to the fan box. Birch plywood, 2mm, and sidewalls rests of poplar plywood, 4mm.