here are pics of the aluminum blocks I had made to secure my targa top over my engine without having my engine cover installed. The prongs extend into the horizontal holes in the blocks when the handle on the targa top is closed. The photos are a little deceiving as the top is flat over the engine with no effect on rear visibility. the top does fit in the trunk...but then nothing else will either. I plan to have them powdercoated to be more stealth.