Which Car Rental Extras Are Actually Worth Paying For?
An honest, traveller-first guide to car rental extras worth it: GPS, child seats, extra drivers, tolls, fuel and winter kit, and when your own gear does the job.
Most car rental extras are optional, and plenty of them you can safely skip because your phone or your own gear already does the job for free. The ones genuinely worth paying for are the few that are hard or illegal to bring yourself, hard to source at your destination, or that save real money or hassle, such as a correctly fitted child seat on a short trip, winter tyres where the law requires them, or a toll transponder on a long motorway drive.
The trick is to decide before you reach the counter. Add-ons are where margins live, so a tired, jet-lagged traveller is the easiest person in the world to upsell. Knowing which extras matter, which are free with a bit of planning, and what you can legally bring from home lets you walk in calm and walk out with exactly what you need.
- Sat nav, Wi-Fi and roadside basics are usually free: your phone and your breakdown or insurance cover often replace them.
- Pay for what is legal, safety-critical or scarce at your destination: a properly fitted child seat, winter tyres where mandated, a toll transponder for heavy motorway use.
- You can often bring your own child seat on a flight, but it must be correctly sized and legal for the country you are driving in.
- Choose full-to-full fuel over prepaid whenever you can: prepaid almost always costs more and rarely refunds the unused tank.
- Book somewhere that shows the car price, the service fee and the deposit up front, so extras are a choice, not a surprise at the desk.
The extras you can almost always skip
A good rule: if you already own it, or your phone does it, do not rent it. These are the add-ons that most travellers are talked into and least need.
Sat nav / GPS
Your phone is the sat nav now. Google Maps, Apple Maps and offline apps like maps.me work across Europe and North Africa, reroute faster than a bolted-in unit, and know about traffic and speed cameras. Download the country map offline before you fly in case of patchy data, and bring a cheap vent phone mount and a USB-C or lightning car cable. That is a few euros of kit versus a daily GPS fee for the whole trip.
In-car Wi-Fi
Rarely worth it. A local eSIM or a data roaming bundle is cheaper, faster and goes with you when you leave the car. If several people need to connect, turn your phone into a hotspot.
Roadside assistance as a paid add-on
Check before you buy, because you may already be covered twice over. Basic breakdown cover is often included with the rental itself, and many home motor policies, credit cards and travel insurance policies extend roadside help abroad. Only consider paying extra if you have confirmed you have no existing cover and you are driving somewhere remote.
The extras that are often worth it
These are the ones where paying at the desk, or bringing a legal equivalent, genuinely earns its keep.
Child and booster seats
This is the one safety extra never to wing. Across Europe and North Africa children below a certain height or age must travel in an appropriate restraint, and the thresholds differ by country. You have two honest options. Rent the seat from the agency, which is simplest when you are flying light, or bring your own, which many families prefer because they trust the fit and the cleanliness. Many airlines carry a car seat free as checked baggage, but policies vary, so confirm with your carrier first. If you bring your own, make sure it is the right size and weight category for your child and legal for the country you will actually be driving in, not just the one you flew from. If you rent one, ask for it to be fitted and test the harness yourself before you drive off.
Additional drivers
Worth it on long drives or road trips where swapping drivers keeps everyone safe, and essential if more than one person will legally be behind the wheel. The catch is that an undeclared second driver usually voids the insurance if they crash, which is a false economy no one should risk. Add them properly. If you are splitting a long motorway haul, the extra-driver fee is cheap next to the cost of a tired driver.
Toll transponders and road passes
Country-dependent. On France, Italy, Spain and Portugal motorways, an electronic toll tag can save real queuing time on a long trip, and in Portugal some rentals come with a mandatory electronic tolling device because many tolls have no booths. For a short city stay you will likely never touch a motorway toll, so skip it. For a week of cross-country driving, a tag or pass is usually worth the small daily fee. Always ask how unused tolls are billed and whether a service fee is added per charge.
Winter equipment
Not a luxury, often the law. In parts of the Alps and across several countries, winter tyres or snow chains are legally required in winter months or when signs demand them, and you can be fined or turned back without them. If you are driving in mountains or cold regions between roughly late autumn and early spring, confirm the rule for your route and pay for the right equipment. Bringing your own chains is possible but they must fit the specific car, which you will not know until pick-up, so renting is usually the practical choice.
Ski racks, bike racks and towbars
Niche but genuinely useful when your trip needs them. A roof box or ski rack beats cramming gear into the cabin, and these are hard to improvise at your destination. If your holiday is built around the equipment, reserve the rack when you book rather than hoping it is free at the counter.
Fuel options: the one that quietly costs the most
Fuel policy is where a lot of money leaks. Two models dominate, and one is almost always better for you.
| Fuel option | How it works | Usually worth it? |
|---|---|---|
| Full-to-full | Collect the car full, return it full. You only pay for the fuel you actually use. | Yes, almost always the cheapest and fairest. |
| Prepaid / full-to-empty | You buy a full tank up front and return it empty. | Rarely. You pay a full tank even if you return it half full, and the per-litre rate is often marked up. |
| Same-to-same | Return it at the fuel level you received. | Fine, just photograph the gauge at pick-up and drop-off. |
Choose full-to-full wherever it is offered, keep the receipt from a petrol station near the drop-off point, and photograph the fuel gauge when you collect and return the car. That single habit settles almost every fuel dispute before it starts.
How to avoid being upsold at the counter
The pressure at the desk is real, but it only works if you arrive undecided. A short routine keeps you in control.
- 1Decide your extras before you travel, and write down your yes list and your no list.
- 2Check what you already have: breakdown cover, a child seat, a phone mount, existing insurance that extends abroad.
- 3Confirm the legal requirements for your specific route, especially child-seat rules and winter equipment.
- 4Read the fuel policy and pick full-to-full if you can.
- 5Photograph the car, the fuel gauge and any existing damage at pick-up, and know your deposit amount before you sign.
Half the stress of extras comes from not knowing the full price until you are standing at the desk. A transparent marketplace like DRIVO is built to remove exactly that moment: you rent directly from trusted independent and local agencies across Europe and North Africa, and the rental price and DRIVO's own service fee are both shown up front before you pay. You also see the security deposit and what the agency's insurance covers before you book, so there is no scramble to understand the numbers in a hurry. Insurance itself is arranged directly with the agency under its own terms, which means you are reading the real cover, not a bolt-on sold at the counter. Booking is instantly confirmed, cancellation is free up to 48 hours before pick-up with the service fee refunded too, and if a question comes up you have WhatsApp and in-app concierge support in English, French, Spanish, Italian or Arabic.
None of that changes the honest answer to the core question: bring what you own, rent what is safety-critical or legally required, and skip the rest. It just means you can make that call calmly, with the full picture, before you ever reach the desk.
Can I bring my own child seat on a car rental?
Often, yes. Many airlines carry a child seat free as checked baggage, though policies vary, so confirm with your carrier. Many families prefer their own for a trusted fit. Make sure the seat is the correct size and weight category for your child and legal for the country you will be driving in, not only your home country, and check it is securely installed before you set off.
Is prepaid fuel ever worth it?
Rarely. With prepaid or full-to-empty you pay for a whole tank up front and almost never get a refund for fuel you did not use, often at a marked-up rate. Full-to-full, where you collect the car full and return it full, is nearly always cheaper and fairer. Keep your final fuel receipt and photograph the gauge.
Do I need to rent a GPS if I have my phone?
Usually not. Phone navigation covers Europe and North Africa well and reroutes faster than a built-in unit. Download an offline map in case of weak signal, and bring a vent mount and charging cable. A paid GPS mainly makes sense if you will have no working phone or data at all.
Are winter tyres or snow chains really required?
In some countries and regions, yes, by law during winter months or when road signs demand them, and you can be fined or turned away without them. This is common in Alpine areas and several colder countries. Confirm the rule for your exact route and dates, and rent the correct equipment rather than guessing.
What happens if an extra driver is not added to the rental?
If an undeclared driver has an accident, the insurance is typically void, leaving you liable for the full cost. Always add every driver officially. The extra-driver fee is small compared with that risk, and sharing the wheel on long drives is far safer than one person pushing through.
How do I avoid surprise charges for extras at the counter?
Decide your extras in advance, confirm what you already own or are covered for, and choose a booking that shows the car price, any service fee and the deposit up front. Seeing the full cost and the insurance terms before you pay, rather than at the desk, is the single best defence against a rushed upsell.