Motion Simulators
Whether you're into racing or flying then the ultimate addition to all of the above controllers is a motion simulator. These feature actuators that move the cockpit around in response to your actions in the simulator, enabling you to feel every turn on the track and bank in the air.
Motion simulators are available in a variety of configurations (2 DOF, 3 DOF, 4 DOF, 6 DOF) to suit every budget. The more DOF (Degrees Of Freedom) a simulator has, the more complex and realistic the movement.
Due to the way cars move, for entry-level racing simulation 2 DOF is sufficient, providing pitch (simulating accelerating and breaking) and roll (simulating turning left and right). 3 DOF adds yaw (simulating losing traction control), adding another level of realism. 4 DOF adds heave (simulating the car lifting off/landing when going over a bump or jump) - extremely useful when rallying. Finally, 6 DOF adds surge and sway, enhancing the previously mentioned axis, making the most realistic simulation.
In contrast, due to the more complex way aircraft move, a flight simulator needs at least 4 DOF, as shown in the video and table below, with more DOF providing more nuance and realism.