> And just how would you do this? Embed channels in the unibody. Seal power+digital rails in the channels and provide replaceable hubs at joints (which avoids

> And just how would you do this? Embed channels in the unibody. Seal power+digital rails in the channels and provide replaceable hubs at joints (which avoids some problems with CAN transceiver issues, and simplifies maintenance). Use plugs that can be sealed in place to connect sensors. The only wires, if any are needed, are between the sensor and a point on the frame, which might be a few centimeters apart. Unibodies already are subject to replacement upon severe damage and the replaced part would include the data rails. Attached sensors could be disconnected and rewired or replaced. Fiber would be just as vulnerable to crash and transceivers would probably cost more, and it certainly wouldn't be less complex, other than perhaps EMI. A lot of modern car design is a result of balancing complexity against maintenance cost. A lot of these factors will go away in a driverless electic world.