Using our low-emission checker: high and low car emissions explained As our lab tests are objective, you can trust our results. Take a look at our pick of the best electric cars.Įvery car we review is driven by our experts and put through our independent lab tests. Want a car that produces zero, rather than low, emissions? You'll need to go fully electric. ![]() Our free low-emissions car checker, below, reveals CO, NOX and CO2 for hundreds of cars we've tested, so you can make an informed decision on your next purchase. Not only do we expect cars to become more fuel efficient over the next few years as technology is refined, there are some cars available today that strike a balance of low CO2 and low air pollutants such as NOx and CO. It also makes buying a low-emission car a lot more complicated. In a nutshell, we may have saved humanity's lungs at the expense of our planet's health. ![]() The good news is that our tests have found that, on average, the cars that meet the latest emission regulations (Euro 6d-temp and Euro 6d, explained in more detail below), are producing a fraction of the NOx and CO of the cars they replaced.īut to make things more complicated, our tests show that CO2 emissions from these very same cars are actually going up, not down. What is a low-emission car? Before the 2015 VW emissions scandal, also known as dieselgate, a low-emission car simply produced a small amount of CO2 (carbon dioxide).īut now we're more aware of pollutants like NOx (oxides of nitrogen), PM (particulate matter) and CO (carbon monoxide) and how poor air quality contributes to tens of thousands of premature deaths in the UK.
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