In some places they gave good information and in others they were completely unscientific. One guy said he overinflated his tires, but then called it a scam.
No, it is absolutely tested science, and if it didn't work it would be a myth that could be busted.
Who is benefiting from it?
Is it a scam if nobody benefits from it? So, here is their questionable video.
Maybe people who know what they are saying can guide this conversation:
Someone mentioned "Gears and Gasoline bought a first-gen Honda Insight" and I found this:
For all that I know someone posted it here and I commented on it, but it was new to me [today]!
Someone commented he loved his Gen1 Insight "392k miles lifetime FE 57.3 mpg" and people said he was bad and his car was bad.
Well, it wasn't this video:
This was kind of interesting:
This is the only other Insight video I see by these guys:
People may complain about me necroing this thread, but if nothing else, original links broke. Here is a current link:
Car Aerodynamics - A2 Wind Tunnel - Wind Camp Tech Theory