I imagine it might be easier than you are thinking. I think it’s mostly a matter of mounting all the sensors (camera, lidar, laser), securing the main computer(

I imagine it might be easier than you are thinking. I think it’s mostly a matter of mounting all the sensors (camera, lidar, laser), securing the main computer(s) somewhere, routing between everything. For the electronics I think most(all) modern cars are electronically steered so inserting your computer into the steering is probably straightforward. To get and control most of the other auxillary features it might be enough to insert yourself on the CAN bus? I’m sure there are a lot of details in the above, and a lot of stuff I’m missing, but I’m not convinced it’s something a group of good engineers couldn’t do in a few months or a year. Certainly not something that is not even on the horizon for most companies.