I would not worry to much. The computer that you used to reliably post your message on was probably made in China.
Most people have no idea where their vehicle was assembled and what components of it were made where.
Many people might be surprised to know their Mercedes or BMW branded vehicles were made in the US, their Toyota branded trucks were made in Mexico, their Porsche Boxster was made in Finland, and their Chrysler was made in Germany.
I doubt that China will be simply any more then a final assembly and paint shop for the time being and not a manufacturer of vehicle drivetrains.
In short, they will not do any engineering of the vehicles. They are just a source of inexpensive labor to bolt previously assembled critcal pieces together.