The latest crop of models are extremely capable at classic (physics based) engineering tasks. Their incredible math ability as well as agent use allows them to plow through engineering problems, and they do it with knowledge that I have only heard grey beards talk about. Humans run through designs doing 1st order approximations and intuitive assumptions, but the models can just breeze through 4th order approximations on everything.

They used to not be able to read schematics, but now they can, as well as generate and simulate. They also have made incredible inroads into CAD and reading mechanical diagrams.

Right now I can say with very high confidence that there isn't a gap in ability so much as a gap in awareness of their abilities. On top of that the next round of models has apparently made strides in all these areas too.