The Aptera Forum
The quoted range is at 67mph. Speed probably chosen to achieve the stated miles per watt. The dropoff in gas mileage on my Prius is much less than normal ICE cars and the CX (coefficient of drag) on the Prius is .24. Speed/mileage tradeoff is based not on CX, but on CXD (cx times frontal area). The Aptera cx is .11 or so and the frontal area is probably about half that of the Prius, so range reduction from higher speed should be minimal.