Which transportation product was discontinued after less than two years on the market, resulting in losses exceeding $1 billion due primarily to design flaws?

Product design is critical in the transportation industry, where a single flaw can lead to massive financial losses and safety concerns. Throughout history, there have been several high-profile transportation product failures despite extensive development and marketing efforts. This trivia question focuses on one of the most expensive product design failures in transportation history that fundamentally changed how companies approach innovation in this sector.

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Ford Edsel (1958)
Boeing Sonic Cruiser (2002)
Segway Personal Transporter (2001)
Bombardier Learjet 85 (2015)