Using 12,000 miles per year, 30mpg and £200 per year for insurance would add about 10p per litre on the fuel.
And the rest. As the levy on fuel would not discriminate between high risk and lower risk drivers you'd be looking at a far higher average premium than £200 per year. Not to mention the overall increase in premiums due to inefficiency.



By your reckoning I would now be dead because some blind dick in a tractor pulled out in front of me.