>What would a car engine look like I know it would have to look way different. >Thing is, they're designed for assembly. Instead design for disassembly. See

>What would a car engine look like I know it would have to look way different. >Thing is, they're designed for assembly. Instead design for disassembly. Seems to me the first single milestone would be to design for simple rapid robot removal of the whole engine. No further disassembly required. Even if replacement with a new freshly-tested engine needed significant manual intervention, it would still be a huge step. Especially if it was easy enough for a robot to remove to begin with. Later upgrade the auto-removing robot to do the auto-diagnostics/auto-final-validation-before-deployment process. Even if actual repairs still need to be done manually. Reach this milestone without anyone ever wanting to step back, then maybe consider having the robot start removing your spark plugs rather than using an established expert.