However, even inquests went out of vogue at last, and ceased to torture Tom's conscience.

然而，即使调查最终也不再流行，汤姆的良心也不再受到折磨。

The simple answer to why the rear-mounted engine  model fell out of vogue is cost and efficiency.

为什么后置发动机模型不再流行的简单答案是成本和效率。