It’s easy to plan a road trip abroad around the route and leave the paperwork for later. That’s where the trouble hides. Your home licence may not be enough on its own, the hire car could lose its insurance at the first border, and some motorways expect a sticker nobody at the rental desk will mention. All of it takes an evening to sort out at home. Discovering it at a roadside check costs a lot more.
Find out what your licence actually covers
Start with the International Driving Permit (IDP). Despite the name, it doesn’t let you drive by itself. It’s a translation of the licence you already hold, and the two travel together. Some places insist on one and plenty don’t bother, so look up every country on the route.
There are also two versions. IDPs are issued under either the 1949 or the 1968 convention, and not every country accepts both. Japan only takes the 1949 permit, although drivers from a handful of countries can use an official Japanese translation of their licence instead.
You’ll need to apply in the country that issued your licence, normally through its official motoring organisation, so this has to happen before you fly. Don’t do it months ahead, though. A 1949 permit is valid for one year from the date it’s issued.
Read the hire agreement before you plan the route
Every rental company has its own rules about borders. Many let you cross for a fee, while some won’t allow certain countries on the itinerary at all. Cross without telling them and your insurance may not cover you.
Fees aren’t charged the same way everywhere. Some companies take one payment for a whole region, others bill per country, and five countries can add up. List all of them when you book, not at the counter.
Dropping the car in a different country means an international one-way fee on top, and some are hefty. It can work out cheaper to drive back to the start and do the last leg by train or plane. Ask what breakdown cover comes with the car, too.
Staying connected on the road
On a trip like this your phone navigates, finds fuel, books tonight’s room and, in some countries, pays the road charges covered below. Run all of that on home roaming and you may wince at the bill. Before you go, check what your carrier charges per day abroad and compare it with the cost of an international SIM card or eSIM for the same trip.
An eSIM only works on an unlocked phone that supports it. Providers such as Holafly suggest installing it at home before you travel, though when it starts working depends on the provider and your phone. Their trip plans are data only, which is fine for maps and messaging apps but means no local number.
No plan can conjure up a signal, either. On a mountain pass or a remote road, you get whatever the local network offers, which is sometimes nothing. Download offline maps for each country before you reach its border. Save copies of your licence, IDP, hire agreement and insurance papers on the phone too.
Road charges and low-emission zones
Some countries use a vignette instead of motorway toll booths. Switzerland’s costs CHF 40 and runs for 14 months, from 1 December of the previous year to 31 January of the following year. There’s no short-stay option, so a weekend over the border costs the same as a full year. Get caught without one and you’re looking at a CHF 200 fine plus the fee itself.
Stickers are sold at border crossings, post offices and petrol stations. You can also buy an e-vignette tied to your number plate, and the Swiss customs authority recommends doing that through its official site, because lookalike sites and third-party fees are out there.
Cities have their own rules. France’s low-emission zones require a Crit’Air sticker, foreign-registered cars included, and driving in without one can cost €68. Which vehicles are allowed changes from city to city. Order it from the French government’s Crit’Air website, the only official one, well before the trip, because the sticker comes by post. Belgium has low-emission zones in Antwerp, Ghent and Brussels, and foreign-registered cars must be registered even if they meet the standards. One registration covers both Flemish cities, but Brussels needs its own. In a hire car, ask whether the company has already handled this.
The first hour on unfamiliar roads
If you can, don’t pick up the car straight off a long-haul flight. Jet lag, driving on the other side of the road and signs you can’t quite read make a tough mix. Sleep first, and the drive out of the city gets far easier.
Before leaving the car park, check the filler cap for the fuel type. Pump labels aren’t always obvious: in France, diesel is called gazole. Check whether the speedo reads kilometres or miles, and find any safety kit the law requires. France wants a reflective vest within the driver’s reach, and a warning triangle.
Rules and prices change, so check the official sites again a week before you go. If the route crosses several borders, make sure your mobile plan works in all of them.