THE MIDDLE CHILD The GN 200 Mile Racer was my second car. My accidental discovery of CycleKarts, as the Stevensons defined them, occurred when I was looking for ideas to build a GN – something I had idly fantasized about since my teens. The time was now! (then) but I chickened out and found more sensible inspiration in the Peugeot Quadrilette.  Building the Quadrilette bolstered my confidence and I plunged