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The Cybertruck is not aerodynamic. It's just not. Hard corner surfaces aren't good for aerodynamics.
I just don't see how this design s revolutionary. Sure - it's different (futuristic?) - from, from an efficiency perspective - I think it's poorly designed. It seems to me that Tesla's pitch has been about making cars more efficient, getting better range, saving the planet . . . . This truck doesn't move Tesla towards that goal.
Can those that think this car is aerodynamically "efficient" please explain how? A teardrop is the most efficient, with a cube being the least. That's why cars look the way they do - as everyone tries to better mileage (efficiency), they continue to work towards a more aerodynamic shape (as long as they can still sell cars).
Read about aerodynamic efficiency in car design and then discuss.