A height-adjustable rotatable chair overlay for facilitating entry to and exit from a vehicle by a user includes a seat. A lift is coupled to and extends from a bottom of the seat. The lift is selectively extensible. A turntable is rotationally coupled to the lift distal from the seat. Each of a pair of arms is coupled to a top of the seat. The arms are positioned singly proximate to a left side and a right side of the seat. The turntable is positioned on the lift such that the seat is selectively rotatable relative to the turntable. The arms are positioned on the seat such that the arms are configured to assist a user in entering and exiting the seat. The lift is positioned on the seat such that the lift is positioned to extend and retract. The seat is raised and lowered relative to the turntable.