Re: So drive a..
> The only concern is that governments obsessed with tracking everyone may try and force such cars off the road with stupid "road tax" costs under the guise of pollution/emissions,
They have already started. Under the guise of "emissions reduction", places in Europe have started to restrict cars less than a certain EURO Emission standard.
From the 1st of January this I am no longer able to drive my 80s car into the city (as it predates the EURO standard), and every couple or so years they will up the minimum standard allowed, until all my cars are forbidden. My newest car is from 2003 and it is already stretching the limits of a home mechanic to maintain (too much computer gimmickry), so I won't be buying anything newer.
At the point where I can't use my cars to go to work, it is either "always on connected shitbox", never entering the city (tough as almost all jobs are there), or relocating to another country where they respect privacy (yeah, how many of those exist yet are affordable to non ultra-rich. Monaco is big on privacy for example, but I sure can't afford to live there).
Plus once they do it to the cities, it is not a small step to start restricting all cars (via registration perhaps?). Their ideal wish is to make old cars like horses are now, a kind of toy for the very rich, which have to be trailered on the main roads to and from dedicated tracks, not for practical use day to day or on public roads.
> and that as electric cars (with their highly polluting short life batteries) become more common, that petrol may become scarce - in much the same way as 4-star is nowadays.
Indeed, I suspect so as well. My idea there is to work on converting as many of my cars to run on Alcohol. E85 for the moment (as I can get that at the pump easily for now), but with the ability to run pure alcohol.
Bonus there is that it is a closed carbon renewable resource (so can't claim environmental issues) and humans have expertise making alcohol for thousands of years :-)
If worst comes to the worst, I can brew my own fuel in the backyard, but I suspect there will always be sources of alcohol around.