Thanks for the interesting questions! I'll go with these in return:
How much computing power (in petaflops) behind Autodesk Flow Design?
Is the posted design the one you tested?
You have a Tesla and a stack of 1" R-40 vacuum panels? 
what dimensions?
So... The shape — start with an ME-262. Overhang the windshield but not the nose. If you can't picture a trolley-top on 4-bars, just ask.
Here's a low-resolution-Templated armadillo shell:
Without more of a design brief, I'd only recommend retractable spider-leg camper jacks so you can drive out from under it. And consider basalt as an alternative to the carbon fiber. Lower cost and it bends instead of shattering. You can already get a Basalt Tesla body kit:
Larte Design use basalt fiber in Tesla Model S front bumper - Basalt Guru