If you are planning a trip to Ireland, then you can save money by taking advantage of Groupon's rental vouchers Dublin. You can book a car from as little as £7.00 a day, although obviously cost and insurance rates will vary according to your choice of car. You can book your car by phone and pick it up at the airport for a hassle-free visit to the Emerald Isle. The roads are busy but hiring a car gives you a chance to visit all of the cities brilliant 'must sees'. Use the city's excellent car hire services to take in a bit of culture by visiting its castles, cathedrals and the legendary Book of Kells. Afterwards you can really get to grips with Irish culture by visiting the Guinness factory!