Does anybody have any info about the March Concept Car?

At some point between the late 80s and early 90s, when the British motorsports team March Engineering were having a sort-of-decent showing in Formula 1, I remember they made a concept supercar (or maybe it was an independent designer who gave it the March name? I don't know). I don't think it ever went beyond the stage of a full size model, painted in the same pale turquoise blue colour of their race cars, but it had some interesting styling ideas (the lights were assymetrical, for example). Does anybody know the name of this car, or where I can find images? Thanks