Thought this would be a way to defog windshield without having to heat the cabin. I have a hard time believing this will significantly improve aerodynamics. Ma

Thought this would be a way to defog windshield without having to heat the cabin. I have a hard time believing this will significantly improve aerodynamics. Maybe at lower speeds? But it feels like it would take too much time to notably increase the temp of the outside air enough to make a significant change to the aerodynamics.