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Do you know why #Rally1 cars have such high wheel arches? And why Toyota and Hyundai's rear arches are the only exceptions to this trend? Aerodynamics is behind it, read on this thread to find out why.... 📸by @MSportLtd #WRClive #WRCliveES #WRCjp #YpresRally 
Removing air from the wheel well (and therefore the underbody of the car) is a clever way to reduce the pressure under the car. As the pressure on the car remains constant, the force pushing the car towards the road increases (more downforce = more grip).
In the 2017-2021 #WRC car generation, the air was extracted from the wheel well through the rear fender vents... How can we forget the CD holder on the Toyota Yaris WRC/ Ford Fiesta WRC, or the vertical air vents on the Hyundai?
