I really hope so. But aerodynamics are aerodynamics. I am worried a Cd less than 0.2 will lead to unacceptable compromises.
0.2 is just ~15% less than a Model S. Just losing the mirror and properly designed wheels will probably get half of that, forget about more advanced aerodynamic modeling. There are large losses in the small details that no one would notice change. Suspension parts? Less cooling?