Sources: Tesla Model 3 will have extreme aerodynamic design details | Electrek Other options, mentioned on Teslas cheapest car could be its weirdest-looking - SlashGear More aerodynamic wheels (narrower?) Body panels that fit over the rear wheels (could they be transparent without being a pain to keep clean?) A single fared-in wiper blade Changes to the underside to improve airflow/use as heatsink for the cooling system And persuading the authorities to change the rules regarding wing mirrors - I can't see this one happening in the short-term. I'm wondering if the base car will be normal-looking (with a Cd similar to the S), but some customers can choose some sort of "Slipstream Pack" or "Range pack" which reduces the Cd below 0.2 but does involve visual changes which others might consider too weird for them. Similar idea to the bodykit modifications for Roadster 3.0. Essentially, "Lo-drag" becomes just another option like "Subzero weather", "Rear facing seats" or "Ludicrous". Like the rear facing seats, Lo-drag might not be available after-purchase since it could involve structural changes.