Perhaps there's scope to have a phone be just a dumb 'viewer' and all the processing and apps run on a suitably configured Linux pc or virtual environment at home. The internet in general is getting fast enough that the latency might not be an issue, and it would not need a powerful phone.
Poor example below, controlling an old phone using Rustdesk.
I just pull off and let them go, but here in the New England they seem to be speed limited and rarely get above 105 so generally it's only speed limited roadwork zones that they get hyper.
I prefer to sit on about 85 as I'm a bit older, and it saves a fair bit on fuel, but will do 100 if someone comes up behind and I can't duck off. Just have to be a little more alert at that speed, watching for potholes etc. Watched too many avch videos hehe.
Yes I'm lucky to live in a rural area. I can't always use it as there are hills on some of the roads, and the cruise control will downshift and cane it up the hills which feels mean, but the main highway is mostly fine.
I've never had a car with adaptive cruise control though, which it sounds like you would need. (Follow the speed of the car in front.)
I remember a cartoon where one character was a recently desexed dog whose only word was baaalls.