A three-wheeled automobile is described herein. The automobile may include a unibody frame, a flexible engine cowling, and a fastener. The unibody frame may include an exposed unibody panel and/or a removable-panel securing fixture disposed adjacent to the exposed unibody panel. The engine cowling may be secured to the securing fixture. The fastener may pass through the engine cowling panel and may be affixed to the securing fixture, thereby securing the engine cowling panel to the unibody frame. The engine cowling panel may pass over the securing fixture and/or behind the unibody panel. The engine cowling panel may be pressed against the unibody panel outwards from the automobile by a bending force in the engine cowling panel such that the exposed unibody panel may prevent bowing of an outside edge of the engine cowling panel directly adjacent to the unibody panel.