This model of the MG TC is primarily a hard-surface model composed of metal, glass and plastic. But the brake lines are very visible, and need to bend and flex when the front wheels turn left and right. They were rigged with joints and smooth-bound. Then a series of set-driven keys was created – the flexing of the brake lines is driven by the Y rotation of the front wheels; the front wheels are driven by the steering wheel; and the steering wheel rotation is driven by a channel in a control object that also has channels for windshield wipers, doors, Z rotation of wheels, hood, suspension, and every other moving element of the car.