Ranking of the most economical combustion cars

In an era of soaring fuel prices, every penny saved at the pump counts. Which used cars should you choose in 2026 with the lowest possible running costs?

 

There are cars whose engines consume minimal amounts of fuel, but that doesn’t translate into low running costs at all — because engine oil consumption and necessary repairs effectively inflate the bills. On the other hand, there are cars whose average fuel consumption — at least on paper — is slightly higher, but very low failure rates, which keep repair costs to a minimum, mean that running costs are largely limited to fuel station expenses. In both cases — though they don’t exhaust the spectrum — the technical condition of the vehicle is of particular importance.

Even the best engine — diesel or petrol — in a neglected car with many previous owners will turn out to be an enormously costly trap. This is, in fact, a common source of unflattering opinions about otherwise decent models or engines — buying a worn-out example and judging the entire model through its individual lens.

What to choose? Which used car to buy in 2026 if your priority is keeping costs as low as possible? We present a ranking of models that won’t ruin even the tightest budget.

 

Key information

• Buying a used car is always a risk — even the most recommended models can turn out to be a money pit if their condition leaves much to be desired.
• Before purchasing a car on the secondary market, it’s worth knowing the vehicle’s history — it’s a way to avoid unpleasant surprises, and also to gain possible arguments when negotiating the price.
• When thinking about car running costs, you need to consider not only fuel expenses, but also insurance costs, necessary repairs, and loss of value (with age and mileage).
• When choosing a vehicle model, pay attention not only to those offering low fuel consumption, but also low failure rates — this will help avoid unexpected repair costs.

 

 

Diesel engines vs. petrol with factory LPG installation

Until not so long ago, the prevailing view was that city cars should be equipped with a petrol engine, possibly combined with an LPG installation. This was a practical solution, and its running costs were as low as possible. Over time, however, small diesels also appeared — with engine capacities of 1.4 or 1.6 L, suggesting that such powertrains could be freely used in urban traffic. That was a mistake.

Choosing a car with a diesel engine currently pays off almost exclusively for vehicles covering at least 20,000 kilometres a year, the majority of which are on motorways. It’s precisely on long stretches covered at a steady speed that diesels show their full advantages, while also increasing travel comfort. In any other case, a car with a petrol engine providing reasonable fuel consumption — but above all appropriately low servicing costs — will be the better choice. It’s the repairs of quickly-wearing components in urban use that undermine the case for diesels, for example as a family city car.

 

The most economical combustion cars — real running costs

Choosing the most economical combustion car is not just about finding a model that burns the least fuel, but also a reliable car that breaks down rarely — and if it does, repairs will be cheap and spare parts easily available. Here are 10 cars that meet these criteria — and what their users say about each model.

 

Fiat 500 (1.2 8V FIRE)

Is 69 horsepower a lot? Obviously not, but it doesn’t have to be a problem in every case — especially if, depending on the version, the car doesn’t even weigh 1,000 kilograms. The Fiat 500 is a continuation of the tradition of “small Fiats” — cars as inexpensive as they are compact, which fit perfectly into city life, and when the mood strikes — with the help of a heavily loaded roof rack — will take a family with children and a dog all the way to on a longer family trip. The Fiat 500 has the additional advantage that regardless of whether it’s from the early production days in 2007 or from the end in 2024, every example looks very stylish and fresh. There are, of course, downsides — reaching the rear seat requires advanced gymnastics, only to find there’s barely room for a packed lunch. The boot isn’t much better — 185 L is next to nothing.

Several different powertrain solutions went under the bonnet of the Fiat 500, including hybrid and fully electric ones. When looking for maximum savings, however, it’s better to look elsewhere — towards an engine that may be somewhat archaic, but for that reason virtually trouble-free. The 8-valve 1.2 with 69 hp, somewhat ironically dubbed FIRE, burns absurdly small amounts of fuel, and if additionally equipped with an LPG installation, the cost of driving 100 km drops to 20–25 PLN — not much more expensive than cycling. When looking for used Fiat 500s (those from 2014–2019 are worth considering, already free of the teething problems typical of early production), it’s worth paying attention to the boot lid wiring loom and the exhaust system. The former wears easily, leading to unpredictable on-board electronics behaviour; the latter rusts quickly. A typical Fiat 500 ailment is also breaking door handles. If instead of opening the door you “open” just the handle, know that you’re not the first.

 

Skoda Fabia III (1.0 MPI)

Getting into a Fiat 500 is a sort of extreme sport that not everyone is ready for. Fortunately, there are alternatives — for a not much higher price, you can acquire a Skoda Fabia of the third generation, which clearly lags behind the Fiat in styling, but in terms of practicality leaves it far behind. The Fabia III is a very versatile car, perfectly suited for trouble-free city use. And if someone wants to take the Fabia on a longer journey, that shouldn’t be a problem either. In the estate version, the boot has 530 L of capacity, while the entire car measures just 4.257 metres in length. The other body styles don’t even measure 4 metres.

The safest financial option for the Fabia is the 1.0 MPI engine, stripped of all the complications of modernity — no direct injection, no turbocharger, not even a dual-mass flywheel, which means the risk of a costly failure is practically non-existent — at least in well-preserved examples. It’s worth remembering, however, that the Fabia III 1.0 MPI is a car often chosen by people who want to save money not just on fuel, so before buying it’s worth meticulously checking the braking system, suspension, and service history. Looking for a somewhat newer engine, the 1.2 TSI in examples up to 2017 and the 1.0 TSI in later ones could be considered.

 

Toyota Yaris III (1.33/1.0 VVT-i)

The Toyota Yaris was once a popular choice for driving schools. A small city car that handles high mileage well despite challenging use — which is why the Yaris — second, then third generation — turned out to be a very worthwhile investment. So it is today, confirmed by its popularity in car fleets. Wherever prestige or greater travel comfort doesn’t matter, the Yaris performs well as a company car.

To minimise running costs, two engines are worth considering. The 1.0 VVT-i with 69 hp is designed for typical city driving, averaging 5–6 litres of petrol in a combined cycle (real figures, not just manufacturer declarations). You can’t expect impressive performance, but on a daily basis there’s not much to complain about. Slightly more — 5.5–6.5 L/100 km — will be consumed by the 1.33 Dual VVT-i with 99 hp. Here it’s actually recommended to occasionally take a longer trip at higher revs to blow carbon deposits from the intake system and valves. For both engines, it’s worth monitoring the water pump — deposits indicate leaks — but its replacement won’t break the bank.

 

Dacia Sandero III (1.0 TCe LPG)

A thousand kilometres of range on a single (double) fill-up — and not just any kilometres. This isn’t the same Dacia from the turn of the millennium that practically encouraged you to walk. The third-generation Sandero is a car that costs next to nothing, yet its appearance doesn’t fall behind more expensive competition. The Romanian manufacturer underwent a styling revolution under Renault’s wing, which did it nothing but good — and that’s partly why Dacias are so popular on European roads.

The natural choice for the Sandero III is the petrol 1.0 TCe — a turbocharged unit with 100 horsepower, ideally suited for LPG installation thanks to its multi-point fuel injection. The factory-fitted LPG version is the most economical. Average consumption around 7–8 L of LPG per 100 km keeps real running costs very low — especially considering the prices and availability of spare parts. The gas pressure sensor can be problematic, with malfunctions manifesting as juddering or automatic switching to petrol. The Dacia Sandero 1.0 SCe is better avoided — 65 hp is clearly too little for good performance in 2026.

 

Renault Clio V (1.0 TCe LPG)

You can appreciate the Sandero III’s positive aspects but still not bring yourself to buy a Dacia. An alternative is the Renault Clio V, produced in 2019–2026. The main downside is a higher purchase price — both new and used, you pay clearly more for a Renault than for the related Dacia. But there are plusses — clearly better build quality with higher-quality interior materials, a more carefully finished cabin, and a more innovative, almost futuristic appearance.

For the engine, the same solution is recommended: the 1.0 TCe LPG — a turbocharged 100-horsepower unit. Low fuel consumption results in minimal running costs, and the engine combined with the factory gas installation performs without complaint. This is an economical variant that nevertheless doesn’t feel like the manufacturer was cutting corners. This has its advantages and disadvantages — the EasyLink multimedia system in the Renault Clio V likes to freeze, either refusing to cooperate entirely or dropping the smartphone connection. Tyre pressure sensors are hypersensitive, unnecessarily worrying the driver, and a creaking clutch pedal… can fortunately be “fixed” very easily.

 

Skoda Octavia III FL (1.6/2.0 TDI)

Most cars in this ranking are bought with the head, not the heart, and the same applies here — the Skoda Octavia only arouses emotions in the sporty RS version or the luxuriously equipped Laurin & Klement, neither of which came close to the economical variant. The third-generation Octavia made the list thanks to two diesel engines — the 1.6 TDI and the 2.0 TDI. The first returns around 4.5–5.0 L/100 km, the second 4.5–5.5. With rising diesel prices, that’s a measurable saving.

Spacious interior, large boot not just in the estate, cheap and readily available spare parts, and a wide selection of examples on the secondary market — it’s precisely because of this last point that one should be on guard, because many examples have intensive fleet use behind them. Buying a heavily-worn Octavia means potential problems with the water pump (hence the recommended timing belt replacement immediately after purchase) or a clogged DPF filter from short-trip use. Aiming for the lowest possible costs, it’s better to avoid DSG gearboxes. 

 

Volkswagen Golf VII (1.6 TDI)

Without German brands — despite widespread antipathies — the European automotive market would be not so much sad as empty, and Volkswagen’s popularity across Europe speaks well of this. It’s considered a durable and solid car, more “prestigious” than, for example, the cheaper Skoda. And in terms of economy? The Volkswagen Golf VII, produced from 2012 to 2020, is a relatively safe recommendation. The oldest examples are better skipped, turning — budget permitting — to the facelifted versions, which received better headlights and a better multimedia system. The Golf is practical and ergonomic, very well insulated, making even longer journeys comfortable. Spare parts are readily available and repair costs are reasonable. Downsides? Sheer boredom — which shouldn’t bother anyone for whom a car is primarily a tool for efficient travel.

For long journeys, the 1.6 TDI in the 110 or 115 hp version is ideal, based on the common rail system. This relatively modern unit eliminated most of the problems plaguing older diesels. For predominantly short city use — where diesel engines won’t even warm up properly — petrol variants are a better choice. The 1.0 TSI won’t impress with dynamics, but compensates with average consumption of 5–6 litres per 100 km. As with other VAG group models, 7-speed DSG gearboxes are better avoided in the Golf too — their inevitable repair around 180,000–220,000 km can be quite costly. 

 

Fiat Tipo (1.4 T-Jet + LPG)

The Fiat Tipo is one of those cars you buy when savings are what matter. Available in hatchback and estate versions — the latter with a reasonably spacious boot. The electric power steering in typical Fiat fashion cuts the driver off from any cornering sensation, but that’s not what we’re after here. The Tipo offers a very reasonable purchase price relative to its age — a relatively young example can be bought for half the price of an alternative from a more prestigious brand (e.g. Toyota Corolla).

For economic reasons, the recommended engine is the petrol 1.4 T-Jet with multi-point injection — a very durable unit that is also extremely simple in construction, and thanks to hydraulic valve clearance compensation particularly well suited for LPG installation. The Fiat Tipo is not a perfect car — comfort, equipment and build quality leave room for improvement — but for everyday city driving it does the job well enough. Savings on regular servicing combined with trouble-free availability of cheap spare parts are an additional argument for those counting every penny.

 

Honda Civic IX (1.6 i-DTEC)

When looking for cars with low running costs, you don’t have to limit yourself to budget brands. Honda is far from one — the Japanese manufacturer is associated with interesting cars, sporty motorcycles and engines that love high revs. Here, high revs aren’t on the agenda, because the 1.6 i-DTEC diesel was designed to serve reliably for years, content with minimal amounts of diesel: 4 to 5 litres per 100 km depending on body version. The used Honda Civic IX — the “refreshed UFO” — deservedly joins the ranking of the most economical cars worth considering in 2026.

The key advantages of the ninth Civic are trouble-free powertrains, very practical solutions (e.g. folding Magic Seats), and slow loss of value. Resale after a few years shouldn’t be a problem. As with earlier Civics, a plus is low failure rate and straightforward servicing. There are also downsides. The futuristic silhouette doesn’t appeal to everyone, and the rear window in the hatchback is horizontally divided, severely limiting rearward visibility. The paint is also not among the thickest, which combined with Honda’s infamous corrosion issues sounds like an unfortunate combination. Despite this, the Honda Civic IX attracts both drivers and… thieves, so good comprehensive insurance is advisable.

 

Mercedes A-Class (180d)

Driving a Mercedes is rarely associated with economy — unless compared to a Ferrari or Lamborghini. Setting automotive exotica aside, however, the proposal “with a star on the bonnet” is completely real and not as different from the other cars in this ranking as it might seem. This is the W176, the A-Class produced in 2012–2018 (fortunately having nothing to do with the rolling experiments of the first and second generations). It’s still a Mercedes — so where do the savings come from?

The answer is the engine. Under the designation OM607 hides a 1.5 dCi produced by Renault — one of the most successful small diesels in history. The 109-horsepower unit is content with absurdly small amounts of diesel, with average consumption of 4–4.5 L calling into question the sense of investing in petrol with gas. The look and prestige of a Mercedes — included in the (slightly higher) purchase price — and running and basic servicing costs disproportionately low, at least outside authorised service centres. One must not forget, however, that this is still one of the smallest and cheapest Mercedeses — and with that comes its drawbacks: a cramped interior, thoroughly average build quality, front suspension so stiff that every pothole makes itself known, malfunctioning electronics (e.g. parking sensors), and a few other peculiarities that painfully remind you that the W176 is at best a gateway to the so-called Premium segment.

 

The most economical hybrid cars for daily commuting

Hybrid cars are currently the most convenient combination of two worlds — combustion and electric. These models offer very decent performance with slightly lower fuel consumption than purely combustion-powered cars, while owners are not entirely dependent on charging infrastructure, whose availability still varies significantly across Europe. Although the charging network is constantly expanding, its deficiencies remain the most frequently cited argument by those who ultimately decided against an electric car.

Which hybrid cars are the most economical? When it comes to automotive savings, trust taxi drivers, who better than anyone else must calculate running costs — both of buying or leasing a car, and of its daily use and repairs. It’s no coincidence that they so willingly reach for Toyota. The Prius — the first hybrid car to achieve such enormous success — has a distinctive appearance, improved with each successive generation, but covers hundreds of thousands of kilometres without difficulty, changing owners several times along the way. For those who find the Toyota Prius too taxi-like, or paradoxically too celebrity-like, other Toyota models remain. The Yaris Hybrid fits excellently into urban traffic, while the Auris or Corolla (depending on production year) are timeless and universal. The Corolla 1.8 Hybrid achieves 4.4–4.7 L/100 km as a matter of course.

Famous for their durability — sometimes perhaps over-interpreted — Toyotas aren’t the only economical choice among hybrids. Japanese and Korean competition has also stepped up. The Honda Jazz Hybrid proves that a genuinely spacious car can fit into a small body. The Hyundai Ioniq is equipped with a 6-speed DCT gearbox that completely eliminates the “feeling of riding a tram.” The Ioniq also features an extremely aerodynamic body shape, reducing air resistance during driving. European manufacturers have also contributed. Worth considering is, for example, the Renault Clio V E-Tech (consuming 3.9–4.0 L/100 km), whose owners often forget they have a combustion engine at all, since in urban traffic they use the electric motor most of the time. Energy recuperation during braking further reduces fuel consumption and brake wear.

 

Electric cars — does “consumption” play a key role?

Electric cars obviously don’t burn petrol or diesel, but that doesn’t mean they don’t consume energy — and their consumption translates into practicality in daily use. The lower the energy consumption, the less electricity is needed to cover 100 km, but this doesn’t necessarily mean greater range — because range depends equally on battery capacity (similar to how a combustion car’s range depends on tank size). A separate issue is vehicle weight. The larger the total battery capacity, the heavier the car — which translates back into greater energy consumption, and also accelerated tyre and suspension wear.

 

 

Buying a used electric car is a major financial risk, and buyers have quite limited room for manoeuvre. On one hand, the large drop in value allows you to buy a relatively young example cheaply; on the other hand, that same drop doesn’t come from nowhere. One of its main causes is rapid battery degradation leading to reduced range. Buying a car that after just a few years can only cover 30–50% of the originally declared range is a poor investment — hence the need for thorough battery condition verification before purchase. If someone wants to take on this challenge, the Hyundai Kona and Kia e-Niro (Korean twins) are an interesting proposition from which to start searching the secondary market. The Nissan Leaf has a somewhat longer history, and the Renault Zoe is popular in Europe for good reason.

 

 

 

Frequently Asked Questions