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Car Hire in the UK: What to Know Before You Drive

Once you have collected your car, use this guide for the driving rules, road signs, speed limits, charges and road conditions you are likely to encounter across the United Kingdom.

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Before you leave the rental car park

Spend a few minutes getting familiar with the car before joining UK traffic. It is much easier to find unfamiliar controls while stationary than once you are on the road.

  • Confirm the fuel type: check whether the vehicle takes petrol, diesel or requires charging.
  • Find the main controls: locate the lights, indicators, wipers, demister, hazard lights and parking brake before setting off.
  • Check the transmission: make sure you are comfortable with the clutch and gear pattern on a manual car or the selector positions on an automatic.
  • Check existing damage: make sure visible damage is recorded and consider taking your own photographs before leaving.
  • Set navigation while parked: enter your destination and position your phone or sat nav before starting your journey.
  • Keep assistance details handy: save the rental provider's roadside-assistance and branch contact details.
  • Ask about road charges: find out whether the rental provider handles tolls or road-user charges automatically or whether you need to pay them yourself.

Stay left and reset your driving habits

The biggest adjustment for visitors from countries where traffic drives on the right is keeping the car on the left side of the road.

  • After turning: consciously return to the left side of the new road.
  • At junctions: take an extra moment to check traffic from both directions before moving.
  • Leaving a car park or fuel station: these are common places to instinctively move onto the wrong side when traffic is light.
  • Roundabouts: traffic moves clockwise. Normally give priority to traffic approaching from your right unless signs, road markings or traffic lights tell you otherwise.
  • Overtaking: normally overtake on the right and return to the left when it is safe.

UK speed limits: think in miles per hour

UK speed-limit signs use miles per hour (mph), so keep that in mind if you normally drive in kilometres per hour.

  • Single carriageways: the national speed limit for a car is generally 60 mph.
  • Dual carriageways: the national speed limit for a car is generally 70 mph.
  • Motorways: the national speed limit for a car is generally 70 mph.
  • England, Scotland and Northern Ireland: roads with street lighting generally have a 30 mph limit unless signs indicate otherwise.
  • Wales: roads with street lighting generally have a 20 mph limit unless signs indicate otherwise.

These are maximum limits, not target speeds. A lower signed limit always takes precedence, and road or weather conditions may require you to drive considerably slower.

Pedestrians, cyclists and horse riders

Take particular care around people who are more vulnerable in a collision. There is also an important difference between the current Highway Code in Great Britain and the separate Highway Code for Northern Ireland.

  • Junctions in England, Scotland and Wales: when turning into or out of a road, you should give way to pedestrians crossing or waiting to cross.
  • Junctions in Northern Ireland: watch for pedestrians crossing the road into which you are turning. If they have already started to cross, they have priority and you should give way.
  • Zebra crossings: give way to pedestrians already on the crossing and take care around people waiting to cross.
  • Cyclists at junctions: check carefully before turning across a cycle lane or the path of a cyclist continuing ahead.
  • Passing cyclists in Great Britain: Highway Code guidance is to leave at least 1.5 metres when overtaking at speeds up to 30 mph and more space at higher speeds.
  • Passing cyclists in Northern Ireland: official visitor guidance advises passing slowly and only when safe, and trying to leave about 1.5 metres.
  • Passing horses in Great Britain: pass at under 10 mph and allow at least 2 metres of space.
  • If there is not enough room: wait behind until it is safe to pass rather than squeezing through a narrow gap.

Driving on UK motorways

  • Keep left unless overtaking: once you have passed slower traffic, move back into the left-hand lane when it is safe.
  • Joining: use the slip road to build an appropriate speed and merge safely with traffic already on the motorway.
  • Variable speed limits: overhead signs can impose a temporary lower speed limit.
  • Red X: a red X over a lane means that lane is closed. Do not drive in it.
  • Hard shoulder: do not use it as a normal traffic lane unless signs explicitly show that it is open for traffic.
  • Your exit: move into the appropriate lane in good time rather than making a late change across traffic.

If the hire car breaks down

On a motorway or other high-speed road, getting yourself and your passengers away from moving traffic is the priority.

  • If possible, leave the motorway at the next junction or pull into a service area.
  • If you cannot leave, move left into an emergency area or onto the hard shoulder where one is available.
  • Stop as far to the left as practical and switch on the hazard warning lights.
  • If it is safe to leave the vehicle, exit away from traffic and move to a safe place well clear of the carriageway.
  • Contact the roadside-assistance provider supplied with your rental.
  • If the vehicle is stopped in a live traffic lane and you cannot reach a safe place, keep your seat belt and hazard lights on and call 999.

Parking and road markings that visitors should recognise

Parking restrictions can vary by street, time of day and local authority. An empty space does not necessarily mean that parking is permitted.

  • Double yellow lines: mean no waiting at any time. Loading or unloading may still be permitted unless separate loading restrictions apply, so check signs and kerb markings.
  • Single yellow lines: waiting restrictions apply during the times shown on nearby signs or on signs at the entrance to a controlled parking zone.
  • Red routes: stopping restrictions apply. Check the roadside signs and marked bays carefully.
  • Marked parking bays: check whether payment, a permit or a maximum stay applies.
  • Pavement parking: you must not park partially or wholly on the pavement in London or Scotland, except where a permitted exemption applies. Elsewhere, you should not park on the pavement unless signs permit it.
  • Reserved spaces: do not use bays reserved for Blue Badge holders, residents, motorcycles or other specified users unless entitled.
  • White zig-zag markings: these protect pedestrian crossings. Do not stop or park within the controlled area.

Yellow boxes, bus lanes and junctions

  • Yellow box junctions: do not enter the box until your exit road or lane is clear.
  • Turning right at a yellow box: you may enter and wait when your exit is clear but you are prevented from completing the turn by oncoming traffic or other vehicles waiting to turn right.
  • Bus lanes: check the signs before entering. Restrictions and permitted vehicle types vary and may apply only at specified times.
  • Traffic lights: stop behind the white stop line unless the signal permits you to proceed.
  • Mini-roundabouts: treat them like other roundabouts, give way as directed and normally keep to the left of the central white circle.
  • Camera enforcement: box junctions, bus lanes, parking restrictions and road-user charges may be enforced by cameras.

Road charges and emission zones can be easy to miss

Some UK road-user schemes rely on number-plate cameras rather than conventional toll booths. A charge or penalty involving a rental vehicle may also lead to an administration fee from the rental provider.

  • London Congestion Charge: check the current zone, operating times and payment arrangements before driving into the charging area.
  • London ULEZ: the Ultra Low Emission Zone is separate from the Congestion Charge. Check the rental vehicle's registration rather than assuming that every hire car is compliant.
  • London road-user charges: some routes and crossings can have separate charging arrangements, so check your planned route before travelling.
  • Dartford Crossing: there are no conventional toll booths. Where a Dart Charge is payable, it normally needs to be paid by midnight the day after the crossing.
  • Clean Air Zones in England: several cities operate Clean Air Zones. Some zones include cars while others apply only to particular vehicle types, so use the official checker for the registration of your rental vehicle.
  • Scottish Low Emission Zones: Aberdeen, Dundee, Edinburgh and Glasgow operate Low Emission Zones. Non-compliant vehicles can receive a penalty, so check the rental vehicle before entering a zone.
  • Other charges: toll roads, bridges, tunnels and local schemes can have their own payment arrangements.

Before paying a charge yourself, check your rental agreement or ask the provider how that particular scheme is handled. This helps avoid missing a payment or paying twice.

Rules that can catch visitors out

  • Hand-held phones: do not hold and use a mobile phone while driving. Stop somewhere safe before using a hand-held device.
  • Hands-free equipment: you must remain in proper control of the car and equipment must not obstruct your view of the road.
  • Seat belts: wear a seat belt where one is fitted and make sure passengers are appropriately restrained.
  • School and residential areas: expect lower speed limits and watch carefully for pedestrians, children and cyclists.
  • Road cameras: speed limits, bus lanes, parking restrictions and road-user charges can all be camera-enforced.
  • Drink-driving: Scotland has a lower legal alcohol limit than England, Wales and Northern Ireland. The simplest approach is not to drink when you are going to drive.

Weather and rural roads

Some UK journeys take much longer than the mileage suggests, particularly in rural, coastal and mountainous areas.

  • Rain: stopping distances can be at least double those on a dry road, so increase the gap to the vehicle ahead.
  • Fog: slow down and use the appropriate lights when visibility is seriously reduced.
  • Narrow lanes: expect blind bends, high hedges and limited passing space in rural areas.
  • Single-track roads: common in parts of Scotland. Use passing places rather than forcing another vehicle onto the verge.
  • Cyclists, horses and livestock: reduce your speed, be patient and allow plenty of space.
  • Journey times: do not judge a rural route purely by distance. Forty miles on minor roads can take much longer than forty motorway miles.

Driving rules are not identical across the four UK nations

England

Roads with street lighting generally default to 30 mph unless signs show otherwise. London has several road-user charging schemes, while Clean Air Zone rules also vary between English cities.

Wales

Roads with street lighting generally default to 20 mph unless signs indicate another limit. Pay particular attention to speed signs when moving between urban and rural roads.

Scotland

Scotland has a lower drink-driving limit, a nationwide prohibition on pavement parking subject to limited exceptions, and Low Emission Zones in Aberdeen, Dundee, Edinburgh and Glasgow.

Northern Ireland

Northern Ireland has its own Highway Code and administrative rules. Typical car limits are 30 mph in built-up areas, 60 mph on single carriageways and 70 mph on dual carriageways and motorways unless signs show otherwise.

Before returning the hire car

  • Check the agreed return location and opening arrangements.
  • Refuel or recharge according to the rental agreement.
  • Keep the final fuel receipt if required by the fuel policy.
  • Allow time for traffic, refuelling, road charges and any airport shuttle.
  • Remove personal belongings and check the glovebox, door pockets and boot.
  • Consider taking photographs of the vehicle, mileage and fuel level at return.
  • Keep the rental paperwork and any return confirmation until the deposit or card pre-authorisation has been released.

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Frequently asked questions about driving a hire car in the UK

Which side of the road do you drive on in the UK?

Traffic drives on the left. Take particular care after turning and when leaving car parks, fuel stations and quiet roads.

What are the speed limits for cars in the UK?

Unless signs indicate otherwise, the national speed limit for cars is generally 60 mph on single carriageways and 70 mph on dual carriageways and motorways. Roads with street lighting generally have a 30 mph limit in England, Scotland and Northern Ireland and a 20 mph limit in Wales unless signs show otherwise.

Who has priority at a UK roundabout?

Normally give priority to traffic approaching from your right unless signs, traffic lights or road markings direct otherwise. Choose the correct lane before entering and follow the markings through the roundabout.

Can I use a hand-held phone while driving?

Do not hold and use a mobile phone while driving. Stop somewhere safe before using a hand-held device.

Do hire cars have to pay road-user or clean-air charges?

It depends on the rental vehicle, your route and the particular scheme. Check the vehicle registration using the relevant official service and confirm with the rental provider whether you or the provider is responsible for payment.

What should I do if the car breaks down on a motorway?

Leave the motorway at the next exit or service area if possible. If you cannot, move left into an emergency area or onto the hard shoulder where available, use the hazard lights and move yourself and passengers to a safe place away from traffic if it is safe to do so.

Official UK driving information

Driving rules, speed limits and road-user charges can change. Check current official information when planning your route.

Last reviewed: 17 September 2026.