[aerohead]

Originally Posted by freebeard

I think it's a good question.

The stock answer is length over height, but I notice with vehicles like the Arcimoto, taller than they are wide, the doubled taper on the sides overrules the taper on the top. The result is a vertical edge rather than a tail.

I'd favor length over max width OR height. If you can solve for a full boat-tail you can derive the truncation.

velomoblile need a longitudinal wickerbill on the nose, as well as a tailfin.

Arcimoto is not an ' enclosed' body, and cannot qualify as a candidate for 'template' comparison.