I keep revisiting the 1987, Renault Vesta-II, Cd 0.186, 2008 M-B Bionic Boxfish, Cd 0.19, and Rocky Mountain Institute's 1990s 'Hypercar', Cd 0.16, as a 'glider', without powertrain.
Basically speaking, CarBEN seems like the offspring of these three, only with the added benefit of the full skirt package.
If it didn't come in at around Cd 0.16, as she sits, I'd be shocked. All the elements are there.
Especially as a BEV, which benefits from lower body porosity, from lower drag, lower road load power requirement, as with the M-B Vision EQXX.