The Lotus 79 used bodywork on the underside that effectively created a venturi, thus as the air rushed under the car the air was forced to accelerate and the pressure of the air was lowered dramatically.
a) have better traction out of the turns
b) better traction into the turns
c) better traction though the corners
d) or all three
Bentley Continental Flying Spur
Frontal area (31.1 sq ft)
Bentley Continental GT3
As a car, the Continental has a big frontal area, so aerodynamic efficiency is particularly important.