In spite of a generally improving economy in Ireland, sales of new cars continue to fall, or at least to flatline, in the face of every-growing numbers who choose to buy their cars both used and from the UK. The outwash of Brexit, and its depressive effect on the value of Sterling, continues to generate tempting value for Irish buyers shopping in the UK, and the total number of imported used cars looks set to exceed 100,000 this year. That is a number perilously close to the total sales of new cars.
Dealers and vehicle importers have been clamouring for the Government to do something to stem the tide, a tide that is undermining the used values of ‘native’ Irish cars, as well as its deleterious effect on the sales of new cars.
Is a tax on NOx the way forward? It’s certainly been floated, as part of a wide-ranging review of the vehicle taxation system being undertaken ahead of October’s Budget. NOx — nitrogen oxide — is the odourless gas at the heart of the recent diesel scandal. Emitted in large amounts by diesel cars (well, proportionally larger than a petrol, or a hybrid at any rate) it was car makers’ cheating over how those emissions were recorded and regulated that opened the public’s eyes to the potential downsides of diesel — namely localised air pollution, and the danger of causing increased rates of respiratory disease, to which NOx emission have been linked.
Given that the majority of cars being imported from the UK are diesel-powered, a tax on NOx emissions has the potential to be a ‘silver bullet’ to cure the Irish motor trade of its import ills.
Impact on the "native" car park
However, the effectiveness of the plan would depend hugely on the wording of the legislation. It will have to be very carefully designed if it’s not to cause ructions in the second hand market here, and the Government will have to carefully weigh up how it implements such a tax. Should it be retrospective, a stick with which to beat owners of older diesels into newer, less polluting cars? That would, arguably, be the right move from an air quality perspective, but would leave the tax open to criticism that it’s penalising those least able to pay it.
Taxing higher emissions of NOx would, potentially, put a crimp on imports of older diesels, but again the devil will be in the detail. Presumably the tax would have to be based on the officially recorded figures for each car, but prior to the introduction of the newer WLTP economy and emissions test, that figure — we now know — will the unrealistically low. The tax could then be seen as pointlessly penalising newer, more efficient cars which have been put through the new test, while leaving off older cars, simply because they had the luck to be tested under the older, less reliable, regime.