A simple EV Concept Car 3d model suitable for 3D Printing, watertight surface. I have previewed the model in CURA and it works.
The model breaks into parts: body, canopy, tail, wheels 
Not much details modeling, but very nice styling. Have no much polygons, I only use Crease=1 to represent sharp edges. Easy to alter the shape to your taste, allowing you developing the styling further, adding doors, wings, altering the proportion and so on.
Modeling in 3dmax, STL files created in Rhinoceros.