As you may be aware, the Disabled Drivers and Disabled Passengers (Tax Concessions) Scheme provides relief from VAT and VRT on the purchase of an adapted car for transport of a person with specific severe and permanent physical disabilities, payment of a fuel grant, and an exemption from Motor Tax.
The tax reliefs under the scheme are very significant, with a maximum tax relief in respect of persons purchasing an extensively adapted vehicle set at €22,000. A summary table of these tax reliefs can be accessed at page 21 of the document at the following link
https://www.revenue.ie/en/importing-vehicles-duty-free-allowances/documents/vrt/vrt7.pdf.
The Scheme represents a significant tax expenditure, costing €65m in each of 2016 and 2017. This figure does not include the revenue foregone in respect of the relief from Motor Tax. I have no plans to increase the tax reliefs under the scheme.