It looks like the press kit shows Cd was .23
As I recall they were hoping to get to .21, so it looks like they missed that target a bit.
Is the Cd lower than .23 if you get the 18" Aero wheels?
On the other hand, going above 300mile range on what may be a ~75kWh battery is mighty impressive.
They seem to have made this car very efficient in multiple ways, not just low Cd.