As far as I remember it was more a function of the assembly workers tightening up the nuts with the correct torque and not dropping engine blocks on the floor before installing them. I am not sure better quality control counts as “higher sophistication” in this context.
As far as I remember it was more a function of the assembly workers tightening up the nuts with the correct torque and not dropping engine blocks on the floor before installing them. I am not sure better quality control counts as “higher sophistication” in this context.