Abstract: The present disclosure provides systems and methods for an adaptive cruise control that controls a speed of a host vehicle as a passing vehicle quickly passes through a trajectory of the host vehicle. In one form, a system includes at least one processor that is configured to determine that a passing vehicle is entering a trajectory in which the host vehicle is travelling based on a longitudinal speed, a longitudinal acceleration, a lateral speed, and a lateral acceleration of the passing vehicle; determine to maintain a follow distance of an adaptive cruise control system of the host vehicle to at least one target vehicle in the trajectory in which the host vehicle is traveling prior to the passing vehicle entering the trajectory; and to maintain the follow distance to the at least one target vehicle while the passing vehicle passes through the trajectory in which the host vehicle is traveling.