why would you think it's concrete thinking only? car mechanics seems basically the same as software debugging, yes, there is a bit of physical thinking when it'

why would you think it's concrete thinking only? car mechanics seems basically the same as software debugging, yes, there is a bit of physical thinking when it's time to take parts out and put parts in, but if the car is not turning on you have to figure out in your mind the "algorithm" that is going on from the key turning to the engine working, and debug each step. There might be a bit of 3d thinking in figuring out how to, say, measure that in location X of the engine there is current Y, but it's not like you can figure out you have to check the current in that spot without having a clear mental picture of what is going on. Not to mention remembering that car model X tends to develop fault Y which sometimes causes observable behavior Z, which can be identified by checking A, B, C etc. etc. seems very similar to software engineering to me.