The next generation of parking technology from Ford is dramatically more simple than the previous systems. Found on the Lincoln MKS and MKT, Ford uses ultrasonic sensors to search for available roadside parking and automatically notifies the user when a spot large enough is found. Like the Lexus system, Ford's Active Park Assist takes over steering to guide the vehicle into the spot, leaving braking and accelerating in the driver's hand, er, foot.
Because of its much simpler one-button interface, the Ford system is only able to automatically parallel park, where the Lexus can also reverse into conventional spots. We'll accept this compromise for the enhanced ease-of-use any day.