What might happen if an automobile manufacturer began making and selling cars based on a prototype that went through only one engineering design cycle

One engineering design cycle will have these problems:
1. Reliability testing will not be enough to manufacture a robust, reliable product.
2. Many design and manufacturing flaws may not be detected.
3. Cost optimization will be poor.
4. Customer satisfaction will be low.
5. There will be several product recalls to fix problems due to design and manufacturing deficiencies.
6. The product will eventually be withdrawn.