2010 VW Golf TDI with defeat device displaying "Clean Diesel" at a US auto show

Theresa May hints at prodiving diesel owners help over “toxin tax”

Written by Joseph Nordqvist

Published: 00:00, April 6, 2017

Theresa May has hinted that diesel car drivers in the UK could be given financial help ahead of government plans to introduce a “toxin tax”, under which drivers of diesel-engine vehicles could face a fee of up to £20 per day for driving in urban areas.

London Mayor Sadiq Khan announced that diesel car drivers who enter the capital’s “ultra low emission zone” in April, 2019, will face up to a £24 a day fee. He said: “The air in London is lethal and I will not stand by and do nothing.”

The “toxin tax” could be rolled out to other cities in the UK as well.

2010 VW Golf TDI with defeat device displaying "Clean Diesel" at a US auto show
Diesel cars have been found to emit far more nitrogen dioxide than regulators intended.

The decision to implement these measures was made after Britain received a “final warning” on air quality from the European Commission.

However, this has left some diesel owners somewhat at a loss. Consumers were encouraged by previous governments to buy diesel vehicles as they were thought to be less harmful in terms of emitting of hazardous air pollutants compared to petrol cars. Under Tony Blair’s government a lower vehicle tax for diesel cars was introduced.

But given heightened concern about the dangerous levels of nitrogen dioxide that diesel cars can emit the position on diesel vehicles has changed.

During her tour of the Middle East, Mrs May told reporters that a final decision would be made when the government publishes a new air quality plan – an EU requirement to curb pollution.



Mrs May said:

“Decisions will be taken when we produce that plan.

“But I’m very conscious of the fact that past governments have encouraged people to buy diesel cars and we need to take that into account when we look at what we do in the future.”

The Telegraph reports that Conservative MPs and motoring organisations believe that an alternative to new taxes, an effective means of reducing emissions could be achieved by “removing speed bumps and other traffic-calming measures.”

The level of harmful emissions increases significantly when vehicles slow down and accelerate, researchers have found.

Charlie Elphicke, a Tory MP who chairs the all-party group on fuel costs, was quoted by The Telegraph as saying: “ Instead of punishing drivers with a toxin tax, we could drastically lower emissions by cutting congestion.”

Joseph Nordqvist Avatar

Other News

New-customer ads beat retargeting in a mattress seller’s field experiment

Nov 7, 2026

Marketing strategy can influence whether companies buy or partner, research finds

Nov 7, 2026

Some discounts can reduce sales when customers struggle to qualify

Nov 7, 2026

Large text can make busy social images less engaging, study finds

Nov 6, 2026

AI shopping agents missed better unit prices when product details were costly to inspect

Nov 6, 2026

Asking for online reviews can affect what customers spend next, hotel study finds

Nov 6, 2026

Repeated marketing tests reveal why customers respond differently to offers

Nov 6, 2026

A coupon lifted the promoted product’s value without an equal gain for the retailer

Nov 6, 2026

Hotel reviews changed when ChatGPT became available, study of Italian ban finds

Nov 5, 2026

Immediate subscription access was linked to longer commitment in four studies

Nov 5, 2026

AI video ads prompted emotional reactions in a small laboratory study

Nov 5, 2026

Retailers expanded online sales faster than customer management tools, OECD data show

Nov 5, 2026

A small trial fee drew more interest than a free offer in a Korean study

Nov 4, 2026

Helping small retailers set up payment devices increased adoption in Mexico study

Nov 4, 2026

Retail display ads can shape what shoppers expect before they inspect a product

Nov 3, 2026

Grocery price displays can change what shoppers buy without changing the price

Nov 3, 2026

Product reviews can influence how shoppers assess environmental claims

Nov 3, 2026

Discounts for infrequent buyers can affect how regular customers feel

Nov 3, 2026

Sponsored post frequency has an uneven relationship with influencer engagement

Nov 3, 2026

Regular giving can affect how customers view corporate donations, study finds

Nov 2, 2026