The British Government has come under fire for its "paltry" help for motorists who have been hammered by soaring petrol and diesel prices.
This comes as it emerged that the UK has given some of the least-generous support in Europe to help drivers with high fuel costs.
The RAC motoring group said that, out of 13 nations that have cut tax, only Luxembourg has done less.
Britain cut fuel duty by 5p a litre in March, but the RAC says this looks "paltry" when compared to elsewhere.
The UK Government says the duty cut will save the average driver £100 a year.
Fuel prices recently hit record highs, although they have started to fall back in recent weeks.
Figures from the RAC show the British average price for petrol in July was 182.69p a litre, with diesel at 192.38p.
Jump in oil prices
Fuel prices increased sharply because the price for crude oil, which is used to make petrol and diesel, has gone up. Oil prices jumped following Russia's invasion of Ukraine in February, but they had already been rising as demand rose following the lifting of Covid restrictions.
In the spring statement in March, the Government announced a 5p-a-litre cut in fuel duty to help motorists, but the RAC said the UK was "languishing near the bottom of the table of the 13 countries that have actually done something to help with the price of fuel".
It said Germany had taken the equivalent of 25p a litre in tax off per litre of petrol, Italy 21p, Portugal 16p, and both Ireland and the Netherlands had cut duty by nearly 15p.
Other governments have introduced fuel discounts that take effect when motorists are paying at forecourt tills, with Spain cutting prices by about 17p a litre and France 15p.
The RAC said that, of 15 European Union countries that have not taken action to cut fuel prices since March, all but six already charged less fuel duty than the UK - even after the 5p-a-litre cut.
While petrol prices have begun to fall in recent weeks as wholesale costs decline, the UK's average price a litre still makes it the third most expensive country behind Finland (190p) and Denmark (186p).
RAC fuel spokesman Simon Williams told the BBC: "This analysis lays bare an uncomfortable truth for the UK Government - that compared to other European countries, it's pretty much done the least to support drivers through the current period of record high fuel prices.
Reductions in fuel prices
"UK pump prices might be finally starting to fall, but the reductions so far are too little and too late, given the massive wholesale price drops retailers have been benefiting from for nearly two months.
"Drivers, many of whom depend heavily on their vehicles, need more help and they need it now."
Mr Williams explained that tax accounted for about 45% of the cost of a litre of petrol, through fuel duty and VAT.
"This is why we wanted the Government to go further to lower the prices for drivers because it clearly has the scope and of course it's benefiting incredibly from the VAT take because the higher the wholesale price goes the more the chancellor collects."
He added that those driving in Europe on holiday this summer could be "pleasantly surprised when they come to fill up" as many fuel prices will "far lower" than in the UK.
A Government spokesperson said: "We're helping households now through a £37billion package of support - protecting eight million of the most vulnerable families with direct payments of £1,200 this year, and providing additional payments to pensioners and disabled people.
"We also introduced our biggest-ever cut to fuel duty."