The Model S is the fourth lowest at 0.24, tied with the Mercedes S class, behind the Model 3 at 0.23.
But leading the pack are the Mercedes CLA (0.22) and the Volkswagen XL1 (0.19).
But TIL about the CLA.
Note: the CLA was tested at 0.30 drag coefficient by Car and Driver, though.
Car and Driver's numbers for Cd are higher for everyone, it seems (though certainly the CLA was notably higher).
Then again the new A class is quoted at 0.22.
"That's not fair, they were -trying- to make it aerodynamic!" doesn't really fly as an argument.
The Insight looks like a sporty coupe. The XL1 and EV1 look like pills.
https://www.autoevolution.com/news/mercedes-benz-cla-drag-co...
> The only Mercedes-Benz CLA model that actually is the aerodynamic benchmark for current production cars is the CLA 180 BlueEfficiency Edition, a variant of the small “four-door coupe” that will never be available in the US.
> With an official drag coefficient of 0.22, it bests the Tesla Model S by two whole points. On the other hand, a European-spec Mercedes-Benz CLA 250 sports a Cd of 0.28, which is still two points more optimistic than what Car and Driver's aero test concluded.
> Even so, what Don Sherman doesn't properly explain is that the US variant of the CLA 250 – the car they actually tested in the wind tunnel – doesn't sport the same aerodynamic mods as its European counterpart, such as active engine grille shutters, which make a tremendous difference in the car's drag coefficient at high speeds. In other words, the US-spec CLA 250 may very well sport a Cd of 0.30, could it not?
I have seen grille shutters on C-classes in person since then...