Budget car rental companies compared: Goldcar, Green Motion, OK Mobility and Sicily by Car

Search for a cheap rental car at almost any holiday airport in Europe and the same handful of names rise to the top of the list: Goldcar, Green Motion, OK Mobility, Sicily by Car. Their daily rates are often a fraction of what the big international brands quote, which is exactly why travelers pick them, and also why a few come away feeling stung. Neither reaction is the whole story. These are budget suppliers running a budget model, and once you understand how that model works, you can use it to your advantage instead of being caught out at the counter.

This guide is the overview. It explains why budget suppliers look so cheap, how the model actually works, where the real costs sit, and how to compare these companies on the number that matters: the total you pay, not the headline you saw. From here you can dive into the individual brand guides for the supplier you are actually being offered, because the details differ from one to the next even though the playbook is the same.

Why budget suppliers look so cheap (and how to use them well)

A budget rental company makes the base price as low as it possibly can, because the base price is what you compare online. That number gets you the car and the legal minimum, and very little else. Everything beyond that, the damage cover, the fuel arrangement, the extra driver, the child seat, sometimes even a busy-hour pickup, is offered to you separately at the desk. None of it is hidden. It is simply not baked into the figure that won your click.

This is not a trick so much as a business choice, and it is a fair deal if you go in informed. A traveler who knows which extras they need, has decided their insurance approach before they fly, and brings the right credit card for the deposit will pay close to the headline rate and have a smooth pickup. A traveler who assumes a budget car comes with premium, all-inclusive terms will be surprised at the counter and may end up buying the most expensive version of everything under pressure. The company is rarely the problem. The expectations are.

So the right way to use a budget supplier is to treat the low price as a starting point, not a finish line. Decide in advance how you want to handle the three things that always come up, deposit, fuel and insurance, and a budget rental behaves exactly like a premium one for a fraction of the cost.

How the budget model works: the budget-airline analogy

The clearest way to understand any of these companies is to think of a budget airline. The advertised fare gets you a seat on the plane. The bag, the legroom, the meal, the priority boarding and the seat selection are all optional extras presented to you one screen at a time. The airline is not lying about the fare. It is just unbundling everything that used to be included so the headline can be as low as possible.

Budget car rental works the same way. The base rate gets you the car and third-party cover with a high excess. The damage protection that brings that excess down, the convenient fuel option, the second driver, the satnav, the toll device, these are the equivalent of the bag and the legroom. Some suppliers present them gently online before you arrive; others present them firmly at the desk. Either way, the skill is the same as flying budget: know what you genuinely need, pre-buy or arrange it where it is cheaper, and decline the rest politely.

The main budget suppliers at a glance

Here is how the four most common budget brands line up. The “good to know” column is deliberately general and fair: every one of these is a large, established operator that handles millions of trips, and the points below are about the model, not a verdict on the company. Read the brand guide for the supplier you are actually being offered before you book.

The takeaway from the table is that these companies differ in where they operate and in the small print, but they are built on the same model. Choosing well is less about which name is “best” and more about which one gives you the lowest real total at your airport, on the terms you have already decided you want.

The universal cost traps

Whatever the brand, the same three things turn a cheap headline into an expensive trip if you are not ready for them. Each one has a simple defense, and each is worth understanding before you arrive.

The deposit

Every rental company blocks a deposit on your credit card at pickup, and budget suppliers are no exception. This is a hold, not a payment: it is released after you return the car undamaged. For a budget brand the hold can be substantial, often several hundred to over a thousand euros depending on the car group, because it has to cover the excess, the amount you are liable for if something happens to the car.

Two things matter. First, you need a real credit card in the main driver’s name with enough available limit, not a debit card or a prepaid card, or you may be refused the car at the desk. Second, the size of the hold is directly linked to the insurance you choose: take the supplier’s full cover and the hold is usually small; decline it and rely on your own cover and the hold is large. Neither path is wrong, but you need to know which one you are on before you arrive. Our guide on the deposit and excess on a rental car covers exactly how holds work and what card to bring.

The fuel policy

Fuel is where budget suppliers have historically caught people out, so check the line on your specific booking. The fairest and most common arrangement today is full-to-full: you collect the car with a full tank and bring it back full. Simple and cheap, as long as you refuel just before drop-off and keep the receipt.

What you want to avoid where you can is any arrangement where you pay for a full tank up front and return the car empty, because you almost never run it down to nothing and you end up paying for fuel you never used, often at a marked-up price. If your booking shows that kind of policy, factor the cost in or look for a full-to-full deal instead. Our fuel policy guide walks through every variant so you can spot which one you are getting.

Counter insurance and the excess

This is the single most important moment of any budget pickup. The car comes with basic third-party cover and a high excess, meaning a scratch, a kerbed wheel or a cracked windscreen could cost you hundreds of euros. At the counter you will be offered a “super cover” or “full protection” product that reduces that excess to zero. It is genuinely useful, and it is also where the price climbs and where the sales pressure is strongest.

You have two honest options, and both are fine. You can buy the supplier’s cover at the desk, which is convenient, keeps everything with one company and shrinks the deposit hold, but is the most expensive route. Or you can arrange your own standalone excess insurance before you travel, which is usually far cheaper for the same peace of mind, at the cost of paying for any damage first and claiming it back, and a larger deposit hold. There is no single right answer. The only real mistake is not deciding in advance and then buying the most expensive option under pressure because it is the only one on the table.

How to choose between them: compare the real total, not the headline

Because the headline rate hides so much, the worst way to choose between Goldcar, Green Motion, OK Mobility and Sicily by Car is on the base price alone. The cheapest teaser can easily become the most expensive trip once the cover and the fuel are added, while a slightly higher all-inclusive rate from another supplier turns out cheaper in total.

The right method is to build the same basket for each supplier at the same airport and compare the bottom line. That means the car for your exact dates, plus the damage cover you have decided you want (their product or your own standalone policy), plus a fuel option you are comfortable with, plus any extras you genuinely need such as a second driver or a child seat. Compare those totals, not the front-page numbers, and the real winner usually looks quite different from the one with the lowest headline.

That is exactly what a comparison does: it lines the suppliers up side by side so you see the real number for each, not the teaser. Often a budget brand still wins. Sometimes it does not. You only know by comparing, which you can do on Vrooem.

Staying connected: free internet on every Vrooem rental

A practical point that matters more than people expect: from the moment you land you want internet. You need maps to find the rental shuttle, to navigate out of an unfamiliar airport, to read the parking signs in another language, to understand a foreign toll booth, and to call assistance if anything goes wrong on the road. With a budget supplier, where the whole point is to arrive, grab the car and go, a working connection is what keeps the pickup smooth.

This is one concrete reason to book through Vrooem rather than walking up to the desk yourself: every rental booked through Vrooem includes a free eSIM with mobile data, so you have a connection the second your plane touches down. No hunting for airport WiFi, no surprise roaming bill, no buying a local SIM at a kiosk. For a road trip, where your phone is your map, your translator and your lifeline, having data from minute one is worth more than it sounds, whichever budget brand you end up driving.

Frequently asked questions

Are budget car rental companies safe to use?

Yes. Goldcar, Green Motion, OK Mobility and Sicily by Car are all large, established operators that handle huge numbers of trips every year. The negative stories online almost always trace back to the same avoidable issues: a deposit the traveler was not prepared for, a fuel policy they did not read, or counter insurance bought in a panic. Go in informed and the experience is usually fine.

Why is the budget rate so much cheaper than the big brands?

Because budget suppliers strip the base price down to the car and the legal minimum, then offer everything else as a paid extra at the desk, the same way a budget airline unbundles bags and seats. The headline is genuinely low; the difference shows up in the extras you choose to add.

Which budget car rental company is the best?

There is no single best one. It depends on where you are flying, which suppliers serve that airport, and which gives you the lowest real total on the terms you want. The smart move is to compare the same basket, car plus cover plus fuel, across the suppliers available at your destination rather than picking a brand by reputation.

Do I need a credit card to rent from a budget supplier?

Almost always, yes. You need a credit card in the main driver’s name with enough available limit to cover the deposit hold. Debit cards and prepaid cards are generally not accepted for the deposit, and arriving without a suitable card is one of the most common reasons people are refused the car.

Should I buy the insurance at the counter or bring my own?

Both are reasonable. The counter product is convenient and shrinks your deposit hold but is the most expensive route. A standalone excess policy arranged before you travel is usually much cheaper for the same protection, at the cost of claiming damage back rather than being covered on the spot. The important thing is to decide before you fly, not under pressure at the desk. Our deposit and excess guide explains both routes.

What fuel policy should I look for?

Full-to-full: you collect the car with a full tank and return it full. It is the cheapest and fairest option. Avoid prepaid-tank arrangements where you return the car empty, because you rarely use all the fuel you paid for. The fuel policy guide covers every variant.

Do I get internet with my rental car?

If you book through Vrooem, yes. Every rental includes a free eSIM with mobile data, so you have a connection for maps and calls from the moment you arrive. Booking direct at the desk does not include that.

Where can I compare these suppliers?

Compare the full total, including the cover and fuel you actually want, against the suppliers serving your airport on Vrooem, so you judge on the real number rather than the headline rate.