'04 Holden Calais. I have the option of both, so, you tell me.
P.S. I had a passenger take the photo (albeit having to get very friendly to do so), because a friend who's equally nuts about cars thought I was bullshitting when I said my car basically idles at any speed. One of these days I'll get a GoPro so I can look nuts behind the wheel a bit more easily.
May also be worth pointing out that even modern semi-mechanical dashes are completely electrical, the cluster has a single loom and that's it. I don't believe there are even any signal wires anymore, it all goes through the ECU (and/or gearbox/mechatronics module, if you have one (GMs etc generally don't), since ultimately VSS comes from the gearbox and is used for a surprising amount of things) and/or body module first, the cluster just receives a single chunk of data that is sent out to every module in the car. Basically it's a multicast, a packet is sent out once and every module on the bus can choose to either do something with it or drop it. This *significantly* reduces loom complexity and wire count. You can have two or four (low/high speed CAN/ALDL/GMLAN/whatever) signal wires shared between every single module in the car, and that's it.
There's barely half a dozen wires in these clusters, from memory it's: high speed ALDL (think RS-232 but at a different signalling voltage) Tx/Rx, 5v, maybe 12v, and ground(s) - that's it. So much better than all the 90s pre-OBD crap. Even LED brightness is a command nowadays, as a pure guess (I haven't really looked into it), I think the BCM has an input that can be pulled high or low, or simply has button inputs, and this translates to a command that gets sent to relevant modules. No flakey resistors to burn out. I really have no idea why people think modern cars are complicated. They're screamingly easy when everything is broken down into little chunks.
I'm sure I'm preaching to the choir, though, and I'm sure I'm wrong about something. CANbus/OBD (which my car shouldn't run but kinda sorta yeah maybe does anyway) is a topic of significant interest to me, because it meshes two of my favourite things - cars and silicon. It's a fun little rabbit hole to tunnel down, and this is coming from someone who has no business liking old cars (like 50's old) as much as I do.
I'll shut up now, sorry for the waffle, and the edits. Can you tell this stuff interests me? Please do correct anything I have to say, because I'm a massive noob both electronically and (somewhat) mechanically, and both are things I want to learn more about, just don't really know how, beyond bumblefucking around in the garage.