An air deflection apparatus for reduction of vehicular air drag comprises at least one air deflection element coupled to the rear-facing surface of the vehicle but not to any rear door which the vehicle may have. The air deflection elements are displaceable, preferably in unison, between a retracted position and at least one deployed position, and may be deployed and retracted manually, or remotely with powered assistance, or under microprocessor control. Each air deflection element is coupled to a respective portion of the rear-facing surface of the vehicle that is arranged above, below or on either side of the rear door, and each air deflection element is associated with a frame in which it is substantially disposed when in the retracted position. Vehicles equipped with the apparatus, and methods of reducing vehicular air drag using the apparatus, are also disclosed.