Petrol SUV vs Electric SUV: Annual Running Costs in Europe

Ask a European family what a new SUV costs to run and the answer usually stops at the fuel bill. That misses most of the picture. A petrol SUV and an electric SUV of similar size can land in very different places once you add energy, servicing, road tax, insurance and resale value. Comparing petrol SUV vs electric SUV costs line by line shows where the real money goes, and the answer depends heavily on how and where you charge. This guide walks through each cost category, explains the arithmetic, and gives you a worked annual example you can rerun with your own figures for the UK or any EU country.

Table of Contents

• Quick Takeaways
• How Annual Running Costs Are Calculated
• Fuel and Charging Costs Compared
• Maintenance and Repair Costs
• Road Tax, Company Car Tax and Insurance
• Depreciation and Resale Value
• Side-by-Side Running Cost Table
• Worked Example for a Family SUV
• Common Mistakes That Skew Your Numbers
• Frequently Asked Questions
• References

Quick Takeaways

Key Insight

Explanation

Energy is the biggest variable

Home charging on an off-peak tariff is usually the cheapest energy per kilometre, so your tariff matters as much as the badge on the bonnet.

Calculate per 100 km

Compare litres per 100 km against kWh per 100 km, then multiply by your real annual distance and your local prices.

Public rapid charging erodes the advantage

If most of your miles come from roadside rapid sessions, the electric SUV can cost close to the petrol version to run.

The maintenance gap is real but model-specific

Electric SUVs drop oil changes and most engine servicing, but tyres and brakes still need attention on heavy vehicles.

Tax and insurance can flip the result

Check national vehicle tax rules and get insurance quotes for the exact version you plan to buy before assuming the electric SUV wins.

Resale is the wild card

Used EV values vary by model and battery condition, so estimate the depreciation before you sign the agreement.

How Annual Running Costs Are Calculated

Most comparisons start with the pump price or the electricity tariff. That is the wrong place to begin. The useful unit is energy per 100 km, because it puts a petrol SUV and an electric SUV on the same footing before you apply your own prices.

Start with your annual distance. Pull it from the last twelve months of fuel receipts or your service history rather than guessing. A family SUV that covers 15,000 km a year and one that covers 9,000 km can have completely different totals, even if the two cars are identical.

Energy use per 100 km

A petrol SUV is usually quoted in litres per 100 km, and the figure you get on a mixed route often runs above the official number. Electric SUVs are quoted in kWh per 100 km. Use the figure that reflects electricity pulled from the wall, not just the battery, because charging losses are real and a battery-only number understates what you actually pay.

In practice, the efficiency advantage of an electric SUV is largest in stop-start urban traffic and smaller at sustained motorway speeds, where aerodynamic drag takes a bigger share of the energy. Families who spend most of their week on school runs and supermarket trips see the biggest benefit.

Build your calculation in three steps

Multiply litres per 100 km by your annual distance, divide by 100, then multiply by your fuel price. Do the same with kWh per 100 km and your blended electricity price. Subtract one total from the other and you have the energy difference, before servicing, tax or depreciation enter the picture.

Pro tip: Ask your energy provider for both your standard and overnight rates before you run the numbers. A blended rate built from your real split of charging times will be more accurate than any headline tariff.

Fuel and Charging Costs Compared

Energy is where most families see the biggest difference, and also where the most expensive mistakes happen. The cheapest electric kilometre is almost always one charged at home, overnight, on a tariff with a lower off-peak rate. Public rapid chargers can cost several times more per kilowatt hour, and that premium erodes the advantage quickly.

Home charging on an off-peak tariff

Home charging suits households with off-street parking and either a wall box or a dedicated circuit. Once you move to a time-of-use tariff, the car charges while you sleep at the lower rate. Whether that saving exists depends on the tariffs your provider offers in your country, so check before you order a charger.

A common mistake is to assume the cheapest tariff is the best one. A very low overnight rate paired with high daytime prices only pays off if you can actually charge at night. Families with shift work or an early departure need to model the split between charging times, not guess it.

Public rapid charging and the premium you pay

Roadside rapid charging is designed for long trips, not daily commuting. If most of your miles come from ad hoc rapid sessions, your electric SUV may cost close to what the petrol version costs at the pump, and sometimes more. Treat rapid charging as a backup you choose on purpose, not a default.

The cheapest kilowatt hour is the one you never buy at a rapid charger. Most families who are disappointed with their running costs are paying for convenience they did not plan for.

Petrol and electricity prices both move with the market. Re-run the sum once a year rather than relying on a single quote from a dealer or a single month of bills.

Maintenance and Repair Costs

Maintenance is the category where the electric SUV usually wins without much argument, although the margin depends on the model and how many kilometres you cover. UK government guidance notes that electric vehicles can have lower maintenance and repair costs than petrol or diesel cars, and independent UK cost comparisons point the same way.

Servicing intervals and what disappears

A petrol SUV needs engine oil and filter changes, spark plug replacement on many models, timing belt or chain checks depending on the engine, and fuel system work as the car ages. An electric SUV removes most of that list. You still pay for cabin filters, brake fluid on many models, battery coolant and periodic inspections.

In practice, the servicing saving is real but not dramatic on its own. Its value comes from fewer workshop visits and fewer surprise invoices in years three to six, when petrol engines start to need more attention.

Tyres, brakes and wear items

Heavy SUVs wear tyres faster, and electric SUVs are often heavier than petrol equivalents of similar size because of the battery. Budget for tyres rated for the load and for the strong, instant torque. Brake wear is often lower because regenerative braking does much of the slowing, but pads can corrode if the car sits unused for long periods, so brakes still need checks.

Pro tip: Ask for a written list of wear items and their expected intervals before you buy. Compare that list with the petrol SUV's service book, then add the tyre cost per kilometre to both sides of your calculation so the comparison stays fair.

Road Tax, Company Car Tax and Insurance

Tax and insurance are the two line items that can flip the result, and they vary more by country and by employer than by drivetrain. Use the rules where you live and get live quotes for the exact model. Never assume an electric SUV is cheaper to tax or insure simply because it is electric.

Road tax and first-year rates

UK government guidance notes that electric vehicles have favourable first-year vehicle excise duty rates, but the ongoing position depends on the rules in force at the time. Many EU countries use different systems, some based on CO2 emissions and others on engine size or weight. Check the current rules with your national vehicle authority before you compare two versions of the same SUV.

Company car tax if you drive through work

If your SUV is a company car, the tax charged to the employee is the figure that matters most. UK government guidance says company car tax for electric vehicles is favourable but is scheduled to rise each year until April 2028, so the advantage narrows over time. Model the benefit in kind for the full term of your agreement, not just the first year.

Insurance: quote both versions before deciding

Insurance premiums depend on repair costs, the car's value and the driver's profile, not only on the fuel type. Electric SUVs can carry higher repair costs for some panels and sensor-based parts, so a quote for the petrol version is not a valid stand-in for the electric one. Get quotes for the exact trim and battery size you intend to buy.

Depreciation and Resale Value

Depreciation is usually the largest hidden cost in both categories, and the hardest to predict. A petrol SUV and an electric SUV can lose value at very different rates depending on the model, the battery condition and what the used market is doing at the time. Government guidance notes that most UK drivers buy their cars on the used market, so the resale value of the car you buy new matters as much as its list price.

Why the used market sets your real cost

The same guidance notes that some used electric vehicles are now priced close to their petrol and diesel equivalents. That is good news for buyers, but it means you should not assume a strong resale value on an electric SUV. Compare asking prices for the same model in petrol and electric form, at the same age and mileage, before you commit to either.

To turn depreciation into an annual figure, subtract the expected future value from the price you pay and divide by the number of years you plan to keep the car. Put that number next to fuel and tax, and you will see whether the electric SUV's energy saving survives its first few years of value loss.

Battery health and what to ask for

For electric SUVs, battery health is the question that separates a good used purchase from an expensive one. Ask for a state-of-health report, check the battery warranty terms, and confirm whether the warranty transfers to a second owner. A transferable battery warranty protects resale value as well as your own driving.

Side-by-Side Running Cost Table

The table below compares three ways families actually pay for energy. The charging or fuelling pattern moves the annual total more than the choice between two similar models does. The entries are directional, not quotes, so replace them with your own tariff and pump prices before you decide.

Energy Approach

What It Typically Costs Per Kilometre

Best Fit For

Petrol refuelling at a forecourt

Set by the pump price and the car's litres per 100 km

Households without off-street parking that rely on frequent fuel stops

Home charging on an off-peak tariff

Usually the lowest energy cost per kilometre for an electric SUV

Households with a driveway, a wall box and a night-rate tariff

Public rapid charging only

Typically the highest energy cost per kilometre for an electric SUV

Occasional long-distance drivers who charge mainly on trips

Reading the table for your household

A mixed approach is the most realistic scenario for many families. If you charge around 80% of your energy at home and the rest on rapid chargers, the electric SUV often still costs less to run than the petrol version. The moment rapid charging becomes your main source of energy, the case gets much weaker.

Your daily routine decides which row matters. A family with a driveway and a predictable weekday commute should price the home row first, while a household that regularly drives long distances should compare the rapid row against a realistic number of trips per year.

Where the table can mislead

The table shows energy only. It does not capture a long holiday with a heavy load, a cold winter week when battery range drops, or a home charger that needs a costly electrical upgrade. Treat it as the starting point for your own sums rather than the final answer.

Worked Example for a Family SUV

The numbers below use invented inputs. They show the arithmetic and the size of the gap between energy lines, not a prediction of your bill. Swap in your own distance, consumption figures and prices before drawing any conclusion.

The assumptions behind the numbers

Assume a petrol SUV at 7.5 litres per 100 km, with fuel at €1.85 per litre, driven 15,000 km a year. That is 1,125 litres, or €2,081 a year in fuel. Assume an electric SUV at 20 kWh per 100 km, so 3,000 kWh a year, with 2,400 kWh charged at home at €0.30 per kWh and 600 kWh charged on rapid chargers at €0.60 per kWh.

That gives an energy bill of €1,080 for the electric SUV, roughly half the petrol figure in this scenario. If the family moved all its charging to home, the figure would fall to €900. Most families, however, do not drive a long holiday route or a mixed week in exactly that pattern.

What the totals tell you

Energy is only one line. Add servicing and wear items, which are typically lower for the electric SUV, then tax and insurance, which depend on the country and the exact model. Depreciation sits on top of everything. In this example, the energy gap alone is about €1,000 a year, a meaningful sum that a higher insurance quote or steep early depreciation could absorb.

That is why two families with similar cars can reach opposite conclusions. Run this example twice, once with your real prices and once with a pessimistic rapid-charging share, before you commit.

Common Mistakes That Skew Your Numbers

Most bad comparisons come from a small set of errors that are easy to avoid once you know them. The first is comparing a petrol SUV's official consumption with an electric SUV's real-world consumption. The second is ignoring where the electricity comes from. Both make one option look better than it really is.

Using one electricity price for every charge

A single average tariff hides the cost of rapid charging and overstates the value of an overnight rate you cannot use. Split your charging into home and public sessions and price each one separately. That split is usually the most important input in the whole calculation.

Calculating for one year when you keep the car for seven

Many families compare costs over a single year, then keep the car for much longer. Calculate over your real ownership period, including the point at which a battery warranty ends or a petrol engine starts to need major work. Short-term comparisons penalise the electric SUV in some cases because depreciation hits hardest in the early years.

Pro tip: Keep a fuel and charging log for three months before you buy. Record kilometres, litres, kWh and what you paid for each session. That real data beats any estimate and will show whether your household is a home-charging family or a roadside-charging family.

Frequently Asked Questions

Is an electric SUV always cheaper to run than a petrol SUV in Europe?

No. It is usually cheaper to run if you charge mostly at home on a suitable tariff. If most of your energy comes from rapid chargers, the gap can shrink a lot, and tax, insurance or depreciation can change the outcome.

Which cost line usually makes the biggest difference?

For most households, energy is the largest single difference, because the cost per kilometre depends on where and when you charge. Servicing differences are real but usually smaller, and depreciation can be the biggest unknown.

Do I need a home charger for an electric SUV to pay off?

Not strictly, but a home charger makes the financial case far easier. Without off-street parking or reliable workplace charging, rapid charging costs will likely dominate your annual total.

How do I work out my own annual figure?

Multiply your annual distance by consumption in litres per 100 km or kWh per 100 km, divide by 100, then multiply by your fuel price or blended electricity price. Add servicing, tax, insurance and depreciation to finish the picture.

Are company car tax rules the same for every electric SUV?

Not necessarily. UK government guidance says the company car tax rate for electric vehicles is scheduled to rise each year until April 2028, so the benefit changes over time. Check your employer's scheme and the current rules before you sign.

Does insurance cost more for an electric SUV?

It can, depending on the model, repair costs and your personal profile. Get quotes for the exact version you intend to buy rather than relying on a petrol equivalent.

Which running cost line surprised you most when you ran the numbers for your own family?

References

• UK government guidance on electric vehicle costs, charging and infrastructure
• Comparison of electric and petrol car running costs for UK drivers