Which product holds the Guinness World Record for the most expensive commercial product redesign failure?

The world of product design often intersects with world records in fascinating ways. Companies constantly push boundaries to create products that are the biggest, smallest, fastest, or most extreme in their category. These record-breaking designs not only generate publicity but often drive innovation forward. Test your knowledge about remarkable product designs that have earned their place in the record books. Do you know which iconic creation holds this particular distinction?

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Coca-Cola's 'New Coke' (1985)
Apple's Newton MessagePad (1993)
Ford's Edsel automobile (1958)
Microsoft's Windows Vista (2007)