How many pieces would you make for the female mold?
The Myers Max was often compared to a bathtub because the body was a single tub with a filler piece for the hood. Here's the evolution, from Old Red to the new Kickout SS.
The most successful fiberglass body ever. (maybe Corvette excepted)
What a fun project though you can do anything in fiberglass. The
Fiat_Turbina for instance, or the
Volhart-Sagitta scaled to 2/3-3/4 with the wheel/cabin proportion altered. A single-seater Shranx with little 4" headlights.