1stly, people don`t need cars to the extent they exist today, after the 1st for a household, they are a luxury.
2ndly, people use cars to take their kids to school - at the end of their street. People use cars to goto the corner shop - at the end of their street.
People WANT to drive their cars on a 1:1 ratio, and use it for every travel-moment (generalization) mainly on a luxury basis.
So yes, stop buying the fuel. Make that full tank last 2 weeks instead of a week - u`ve now not given them how much ?
To have the mindset that cars are NEEDED gives the supplier a stiffy. They arent needed to the extent that they are.
In terms of the taxation, people need to realize that, if for example u pay £1.20 w/ 40p of that going to tax (as an example, not real figures). The government could cut the tax to 20p - but don`t believe for 1 minute that the price of ur fuel will stay at £1.00. Mr Oilman knows for a fact that u have previously been willing to pay £1.20, so gradually that`s what the price will creap up to.. then go further. Then when it reaches £1.30, you`ll blame the government for the taxing of it again.
You pay what they`ll get away with charging you.
I can guarantee u that if tax was taken away completely for petrol, within so many months or years u`ll be back to paying the price u have now. Because u will pay it - no other reason. There`s no supply-costing or anything massaged into it. If the frieghtliners charged less to ship/dock it, ur buying price will still stay the same.