The myriad causes of its demise have been thoroughly chronicled but to my mind one stands out: The custodians of GM simply gave up trying to build the best cars in the world.

• 通用汽车崩溃的诸多原因的记载已经无比详尽，但我认为这里面只有一个最重要的原因：通用汽车的管理者放弃了试图打造全球最好汽车的努力。