Ford Taurus is a great example of concurrent engineering approach $($also known as integrated product$/$process design$).$ The key take$-$away from this example is

Operations and engineering should be separated during the new product design process

During new product design, input from production workers slows down the process and drives up warranty costs eventually

It is a good idea to get stakeholders such as production workers and insurance companies, involved in new product design.

It makes sense to involve production workers in new product design, but external stakeholders, such as insurance companies and suppliers, should be kept away