June 10, 2022: -Britons pay over £125 to fill up an average-sized family car after petrol prices increase past the first psychological threshold on Thursday.

The price is based on the cost of filling up a 55-liter family saloon, as the average U.K. gasoline price was over £1.82 a liter. That translates to $8.60 per gallon, with one liter equal to 0.264172 U.S. gallons.

Filling a similar car with diesel is £103.43, with diesel priced at £1.88 a liter.

British automotive company RAC said it was “a truly dark day today for drivers” as fuel prices keep growing.

“While fuel prices have been setting latest records daily, households up and down the country never expected to see the cost of filling an average-sized family car reach three figures,” RAC fuel spokesperson said in a statement.

Thursday’s milestone is the latest marker of the continued upward pressure on fuel prices between Russian oil sanctions and increasing inflation.

The cost of unleaded petrol is 37% costlier in the U.K. than a year ago, while diesel is 38% more pricey.

The U.K. government announced a 5-pence-a-liter cut to fuel duty in March to help reduce costs for motorists. Although, motoring groups have warned that retailers are not passing cuts on and say more support is needed.

“A further duty cut or a temporary reduction in VAT would go a long way towards helping drivers, especially those on lower incomes who have no choice other than to drive,” the spokesperson said.

Industry analysts now predict that petrol prices could surge even higher.

“We are certainly peppering the £2 a liter mark at the moment,” Gordon Balmer, executive director at the Petrol Retailers Association, told Sky News on Thursday.

Nevertheless, the U.K. is not the most expensive place for fuel in Europe.

Denmark is the priciest country in the region for petrol, according to the British motoring association the A.A., The price at the pump was £2.05 a liter as of May 30.