How do banks in curves on the highway directly relate to "racing"? That's more of a law of gravity and physics...I seriously doubt one was the result of another.

IMO, many feautres on vehicles sold nowadays were first seen in one form or another on race cars (ie, bolstered seats, short throw shifters, paddle/triptronic style trannys, wheel designs, brakes, exhausts, aerodynamics/body styling/spoilers, traction-control/computers, ect. ect..)