When viewed from above, the body of the Aptera increases in width from the front of the vehicle up to the door handles approximately. From there, the body maintains a nearly constant width out to the end of the vehicle.
I would like to see a moderate taper along the back half of the body to match the profile of the rear hatch.
Providing such a taper would increase the vehicle's visual appeal, in my opinion, as well as slightly improve its aerodynamic efficiency. Several of the six corner solar cells would likely need to be removed or relocated, but the slight reduction in body weight and reduced drag coefficient should nearly make up for the reduced solar collection capability. In addition, the reduction in material saves cost, and doing this would not reduce the current cargo space.
Ultimately, I think the more "teardrop" shaped the vehicle can be, the better.
Let me know if you (this community) agree with my assessment as this is a change I would like to see implemented. Integrating such a change now is relatively simple but becomes increasingly more difficult as the vehicle nears large scale production.