Boris Johnson wants the power to tax and spend like Scotland and Wales.
He's also asking the government to let the capital keep more of the money it raises -- rather than share it with the rest of the country.
He says the current system is "simply not fit for purpose" given London's size and stature.Our Political Correspondent Simon Harris reports
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Transport for London expects 34,000 vehicles a month will be liable for the Toxicity Charge on top of the £11.50 Congestion Charge.
Drivers of the most polluting vehicles will pay the new £10 T-Charge, meaning a daily payment of £21.50 to enter central London.
Police are hunting for the owners of this jewellery which they believe is stolen