'F***ing up London!' Jeremy Clarkson takes brutal swipe at Sadiq Khan in expletive-filled post

"But Kahn is seriously f***ing it up."

In a follow up tweet, he also took a swipe at the Conservative Party, saying: "The Tories are f***ing everything else up. London is down to Kahn."

WATCH: Sadiq Khan speaks to GB News about the Ulez expansion

Reacting to the remarks, a spokesperson for Conservative Mayoral Candidate Susan Hall said: "Susan wouldn't use the same language, but absolutely shares the sentiment.

"London is a fantastic city being driven into the ground by Sadiq Khan.

"Susan will steer London in the right direction next May."

The Mayor has faced mounting criticism in recent months for the expansion of the Ultra Low Emission Zone (Ulez) in London.

The extended zone, which covers the whole of outer London, came into force in August.

Ealier this week, Conservative MP Gareth Johnson announced a new Private Members' Bill which would overturn the Ulez expansion in London.

A spokesperson for Johnson described the expansion as "undemocratic".

He said the Ulez expansion is an "unfair stealth tax" which "hits the poorest the hardest".

Speaking about the bill, which will be presented to Parliament on Wednesday, he said: “I am introducing a bill, which if it is not talked out, will overturn the ULEZ expansion which came into force in August.

"Anyone who drives a car into London that does not meet the emissions rules has to pay £12.50 a day.

"This is an unfair stealth tax on the people of Dartford and across the south east, hitting the poorest the hardest.

"My Private Members' Bill gives Parliament the opportunity to overturn this expansion. The London Mayor, Sadiq Khan has no mandate for this.

"Expanding ULEZ was not in his manifesto or in his transport strategy and the consultation on the expansion showed that people did not want it.

"It impacts people in Kent and other counties around London who cannot vote in or out the London Mayor. It is taxation without accountability.

"It punishes those on lower incomes who can least afford to buy a newer car to avoid the daily charge.

"There are also no guarantees the standard for meeting the ULEZ threshold will not be changed in the future to include more vehicles.

“My proposed bill is to overturn the ULEZ expansion and ensure the London Mayor cannot impose this unfair tax on the people of Dartford and beyond."

Downing Street did not rule out supporting the ban on the expansion of Ulez in Greater London.

When asked, the PM's spokesperson said: "We will consider the detail once it is introduced."

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Defending the scheme at Peoples' Question Time earlier this month, Khan said: "More than half of Londoners with asthma live in outer London. Twenty-four of the 30 GPS with the largest number of asthma patients are all in outer London.

"Nobody put up with dirty water, we shouldn't put up with dirty air."

The Mayor also said he has put in "big changes" to support Londoners with non-compliant cars, including putting more money towards the scrappage scheme.

The scheme provides financial assistance to help eligible London residents scrap vehicles that don't meet the Ulez emissions standards.

The Mayor's Office has been contacted for comment.