
In the pursuit of aerodynamics, Subaru has even achieved outstanding CD
values across all models – 5-Door, 4-Door, wagon and SUV alike – as a
way of contributing chiefly to stable high-speed driving and better fuel
efficiency. The 5-Door, wagon and SUV feature various concepts
incorporated into lower rear end of the roof and the bumper to achieve
this. The WRX STI also generates impressive downforce with the large
roof spoiler, while diffuser functions in the rear bumper help to
rectify airflow underneath the vehicle. A large rear spoiler mounted on
the boot lid of the 4-Door WRX STI delivers powerful down force to help
eliminate any lift. Both the 5-/4-Door models have covers mounted
underneath the frame at the front and along the side of the body. These
covers control the flow of air beneath the car and further limit the
generation of lift. This maintains a constant balance in the way the
front and rear tyres are in contact with the ground, resulting in stable
high-speed driving. The stability that these aerodynamic additions
deliver brings about greater driving confidence, which ultimately
enhances driving enjoyment for all.