I have not messed with canbus much, I soldered a db9 connector onto one of my cars so I could do fun computer hacking, turned out the easiest place to do that was the rear tail light.
but personally I prefer wires and mechanical connections.
I want a steering rack connected to my steering wheel,
a master cylinder connected to my brake pedal and clutch pedal, A car that has a cable that runs from the throttle pedal to a throttle body. I don’t need a computer to wonder what I really want.
I worked on a Chevy Cobalt pos. It had one wire going to the ignition switch which worked a relay in the power distribution center under the hood which in turn worked a few relays inside the car which worked more of them under the hood. Crazy!
Drive by wire for steering and brakes is also Crazy!
Late 90s, early 2000s Chevy Trucks with a 4.8/5.3/6.0 V8 and reprogram them to delete/deactivate some systems. That’s the ticket for 20-24mpg that hauls ass and loads. Stick an older cab and bed on them for the looks.
I’m good with an old truck or car with a carburetor but the gas mileage and handling suck.