I like your design and the quality looks quite good. Maybe you could make an optional unit with a hinged cover that is upholstered giving much more covered storage similar to the console in my 2003 Corvette convertible. I also like the CCI but didn't care for the sliding cover. I haven't tried the existing cup holders in a Model S. Maybe they interfere with the driver when they are holding drinks. Maybe your design overcomes the potential interference with using factory cup holders. I applaud your ingenuity.