Compare cheap 7 seater car hire at Dublin Airport. M50 toll costs in GBP, Irish speed limits, the 150 cm child seat rule and tips for driving a big car west.
Heading west or south from the airport? There is a motorway toll on your route with no barrier and no booth. Read the toll section below before you drive off.
Dublin Airport handled a record 36.4 million passengers in 2025, and London Heathrow was its busiest route (Dublin Airport).
Manchester, Stansted and Gatwick also sit near the top of the route table. Ireland’s statistics office counts UK routes as the biggest single market for Irish airports (CSO).
The flight is short. The drive is where UK families get caught out. Ireland drives on the left like home, which makes it easy to forget that the road signs and the child seat law work differently.
The M50 toll you never see
The M50 ring road wraps around the west of Dublin. The airport joins it near its northern end. Almost any trip towards Galway, Limerick, Cork or Kerry takes you anticlockwise round the M50 and through the toll point between Junction 6 (Blanchardstown) and Junction 7 (Lucan).
There is no barrier to stop at. Cameras read your number plate as you pass, and the bill follows. Transport Infrastructure Ireland sets the charges (TII):
- Tag account: £2.22 (€2.60)
- Video account: £2.73 (€3.20)
- Unregistered: £3.25 (€3.80)
- Payment deadline if unregistered: 8pm the day after your journey
A 7 seater pays the same as any other car. TII’s car band covers vehicles carrying up to eight passengers, so you will not pay extra for the bigger vehicle.
What a missed payment costs
Miss the 8pm deadline and the penalty climbs in stages. TII adds £3.42 (€4) first, then another £43.59 (€51), then a further £109.39 (€128) on top.
On a hire car, the bill goes to the hire firm first, because the car is registered to them. Firms handle this in different ways. Some fit a toll tag and recharge you, sometimes with an admin fee added.
Ask at the desk which system your car uses. If it has no tag and the firm does not cover tolls, pay online the same day you pass the cameras.
Other Irish motorways still use old-style toll plazas with booths. The M1 north towards Belfast is one. Keep a few euro coins or a card handy at the front of the car.
Dublin Airport 7 Seaters in one list
One search shows the 7 seaters at Dublin with the total price for each. Check the excess before the drive west.
Kilometres, not miles
Irish speed signs are in kilometres per hour, and they look much like UK signs with bigger numbers. A sign reading 100 is not an invitation to do 100 mph.
The Road Safety Authority lists the default limits (RSA):
- Motorways: 120 km/h, about 75 mph
- National roads: 100 km/h, about 62 mph
- Regional roads: 80 km/h, about 50 mph
- Towns and cities: 50 km/h, about 31 mph
Many rural local roads, the narrow country lanes, dropped from 80 km/h to 60 km/h, about 37 mph, in February 2025 (gov.ie). Older guidebooks and some websites still quote the old figure.
Your hire car’s speedometer will show km/h in large figures. Use those, not the small mph ring.
Crossing into Northern Ireland
Plenty of families add the Giant’s Causeway or a visit to relatives in the North. The border has no checks, but the signs switch back to mph the moment you cross (nidirect).
nidirect also advises hire customers to make sure their insurance covers both jurisdictions. Some Irish hire firms charge a cross-border fee. Check the terms before you book, because the lowest headline rate may not include it.
The child seat rule that catches UK families
In the UK, children can stop using a child seat at 12 years old or 135 cm tall, whichever comes first (GOV.UK).
Ireland sets the bar higher. All children under 150 cm or 36 kg must use a child restraint suited to their height and weight, in any car (RSA).
That gap matters in a 7 seater. A 10 or 11 year old who has left the booster behind at home will probably need one again in Dublin. With four or five children on board, you may need more seats than you expected.
The RSA rules also say:
- Children must face backwards until they are at least 15 months old.
- A rear-facing seat must never go in the front where the passenger airbag is active.
- The driver is legally responsible for every passenger under 17 being properly restrained.
- Taxis are exempt, so the transfer to your hotel is not a guide to the rules in your hire car.
Check which rows of your 7 seater have ISOFIX points. In some models the third row has none, which limits where you can fit a baby seat.
Taking a wide car west
The motorways out of Dublin are wide and easy. The roads near the west coast are not. A 7 seater SUV feels very different on a single-track lane with a stone wall either side.
On the Ring of Kerry, a 179 km loop, tour coaches all run anticlockwise because they struggle to pass each other on the narrow sections (Ring of Kerry). Some drivers go the other way to avoid getting stuck behind them. Others follow the coaches so they never meet one head on.
In a large car, following the coaches is the calmer choice. You give up some speed, but you avoid reversing a 4.7 metre vehicle to a passing place.
The Conor Pass on the Dingle peninsula is narrower again. It has single-lane stretches where one car must reverse when two meet, and a weight limit of two tonnes (Conor Pass). Some large 7 seaters come close to that figure, so check the weight in the handbook and read the signs at the foot of the pass.
Seven people, seven cases
A large suitcase holds 80 to 110 litres. With all seven seats in use, the roomiest common 7 seaters manage about 340 to 350 litres of boot.
For a full family with a big case each, look for the ACRISS FV class, meaning seven or more seats plus more space, or book an 8 or 9 seater. Soft bags squeeze into a 7 seater boot far better than hard cases.
ID, licences and the drink-drive limit
Ireland and the UK share the Common Travel Area. GOV.UK says British citizens are not legally required to show a passport to enter Ireland, but some airlines and ferry firms insist on one (GOV.UK). Ireland is outside Schengen, so the EU Entry/Exit System does not apply.
Carry your passport anyway. Hire desks usually ask for photo ID alongside your UK driving licence, and the main driver will need a credit card in their own name for the deposit.
The drink-drive limit is stricter than in England and Wales. Ireland allows 50 mg of alcohol per 100 ml of blood for fully licensed drivers (RSA), against 80 mg elsewhere in the UK (GOV.UK). Scottish drivers will find it the same as home.
Holding a mobile phone while driving is illegal in Ireland. Penalty points given to foreign licence holders are kept on a separate Irish record.
Picking up at Dublin Airport
Car rental desks are in the Arrivals halls of both Terminal 1 and Terminal 2 (Dublin Airport). Some hire firms base their cars away from the terminals and run a shuttle bus.
Your voucher will say which applies. With seven people and a pile of bags, an off-airport shuttle adds time but often brings a lower price. Compare both before you choose.
Touring the Causeway Coast? Our Belfast International Airport guide covers the north, including Giant’s Causeway tickets and parking.
Keeping an Irish 7 Seater hire affordable
- Compare the total, not the daily rate. Insurance excess, deposit, extra drivers and cross-border fees all sit outside the headline price. A full-to-full fuel policy means you pay only for the fuel you use.
- Ask how tolls are billed. A tag the firm recharges at cost works out lowest. An admin fee on every M50 pass adds up across a fortnight of day trips.
- Count your child seats against Irish rules. Hire firms usually charge per seat per day. If older children need boosters under the 150 cm rule, bringing your own is often cheaper.
- Book early with free cancellation. 7 seaters are in short supply in July and August. Lock in a cancellable rate, then search again nearer the date and rebook if prices fall.
Price a Dublin 7 Seater for your dates
Enter your times to compare low-cost rates from the firms at both terminals.
Questions people ask
Do I have to pay the M50 toll in a hire car?
Yes. The toll applies to every car passing between Junctions 6 and 7. Your hire firm will either cover it through a tag and recharge you, or expect you to pay online by 8pm the next day.
Does my child need a car seat in Ireland if they don’t at home?
Quite possibly. Ireland requires a child restraint for anyone under 150 cm or 36 kg. The UK cut-off is 135 cm or 12 years old.
Can I drive a Dublin hire car into Northern Ireland?
Usually, yes, but check your rental terms. Some firms charge a cross-border fee, and your insurance must cover both sides of the border.
Do I need a passport to fly to Dublin from the UK?
Not by law, for British citizens. Many airlines require one, though, and hire desks want photo ID. Take it.
Where can I compare cheap 7 Seater deals at Dublin Airport?
Compare several hire firms at once. Our search shows 7 seaters from firms in both terminals and off the airport, so you can weigh the total price against the shuttle time. Prices move with demand, so the earlier you search, the more choice you get.
