This is a Aging Wheels, YouTube video: Seven is a Hyper-Efficient Home Built EV Built for the X-Prize', from November 5, 2023.
In this video, the owner associates Cd 0.22 with the car, compared to Cd 0.165, back in 2012 when it competed in the X-Prize, 4-passenger class.
At 200-mpg-e, and 6-miles per kWh, the Seven is in Mercedes-Benz Vision EQXX range territory.
https://www.google.com/search?q=YouT...qE2a7PHpE,st:0