There are more than a few things wrong with this video demonstration. First off, the thickness of the driveway where the cover retracts into leaves no room for any support, unless the driveway is a thick piece of solid steel it couldn't possibly support anything being driven over it. the cover itself is completely cantilevered with not support track on either end, and also looks to be thin. raising it up to ground level would be a simple enough task to accomplish but without some form of locking devices on the closing side and or ends it would be springy at best just to walk over it.
I call this video computer generated

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