Just on electric cars,

Our niece in NZ has a Tesla, gets 2 hours a day free charge at home, but is required to buy kilometres of driving, I thinks its like $700 for 10,000km. Also the servicing on the Tesla is very expensive, and its always requiring new tyres for example. The original purchase price was about $60k I believe. I'm all for electric cars, but there has to be incentives for people to buy and operate them.

p/s They also have a 2nd little petrol car, for hubby to drive to work, about 20 minutes, with petrol over $3lt got himself an electric bike, great in the summer, but if you know the winters in NZ you might think twice about riding a bike to work.

Just came across this, modern fuel rationing using QR codes linked to vehicle rego
http://www.dailymirror.lk/breaking-news/Explainer-Sri-Lanka-Fuel-QR-Code-System-Complete-Guide-to-Register-Download-and-Fuel-Quotas/108-335342

Sri Lanka has implemented a QR Code-based National Fuel Authorization System for fuel distribution across the country, requiring vehicle owners to obtain a registered QR code before purchasing fuel from filling stations.
Under this system, fuel will not be issued from any filling station without a valid QR code linked to a registered vehicle.
The system is designed to manage fuel distribution during ongoing supply pressures and ensure that available fuel is allocated fairly among vehicle owners.

A relative has an MG4 electric car that he is very happy with.
He has a large number pf photocells and a couple of ex PMG lithium
batteries which he uses to charge his car.
He only ever charges it when home.
He is down the Sth Coast on a touring holiday at present and at most
motels he just uses his "granny" charger plugged into his motel room.
Had a phone call to say traffic on the road very light because of the
petrol situation. Some servos got pump not in use signs for some
grades.
EV drivers will be very happy chappies !