With the new Mission Efficiency, Volkswagen is presenting the world’s most efficient near-production electric car. The prototype has set three world records. They stand for exemplary aerodynamics and excellent ideal and real fuel consumption. The vehicle is a beacon of technology and at the same time demonstrates the performance of Volkswagen’s production technology.
No plans for production



Well the Aptera might also be more efficient to drive on it’s own merits once it’s for sale, but it was more a comment that the VW is throwing away all the solar input unless its being driven, while the Aptera can charge with it.
So if you wanted to compare the two, it isn’t fair to exclude what the Aptera can gain, that the VW is throwing away.