Loris Savino, Karim Bartoletti (photos)
This is what nature sounds like: the Audi Q7 e-tron quattro is a plug-in hybrid that combines quattro with the benefits of an electric and TDI engine.
When wind meets a solid object, such as a tree, and is forced to go around it, that creates a vortex. Much like a swirl in water. Within such a vortex the air expands slightly, air pressure decreases and the expansion of the air triggers an impulse. When a number of these impulses reach our ears, we perceive the wind to be howling. We hear the wind but cannot see it. We see its effects: trees swaying, ripples on the water. With electric cars, the exact opposite is the case: you’re moving, and yet you hear next to nothing. No sonorous hum, no subtle purr of pistons going up and down in cylinders.