No car is entirely manufactured in one place. Instead, the parts of the car are designed and manufactured in many locations and then assembled in a final location. Often the parts used in a car will originate in numerous countries. There is very little car manufacturing in Ireland, with only minor component parts and software being made here.
The motor industry in Ireland is made up of dealerships and repair shops that get cars onto Irish roads and keep them there. Ireland has strict requirements for car maintenance, requiring cars over a certain age to undergo the National Car Test (NCT) to ensure it is roadworthy.