True Cost Calculator

The price tag lies. This shows what a car really costs you over 5 years.

Cupra Tavascan 2024 (clear)

True 5-year cost (after resale)
£40,164
Purchase price£47,340
Charging (5 yrs)£2,800
Insurance (5 yrs)£3,895
Maintenance (5 yrs)£2,695
Road tax (5 yrs)£950
Minus estimated resale value−£17,516

That is £669/month of real motoring cost.

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Why the sticker price is only half the story

The price on the windscreen is the most misleading number in motoring. A £27,995 hatchback does not cost £27,995 — it costs that plus five years of petrol, insurance, servicing, repairs and road tax, minus whatever it is still worth when you sell it. Most buyers never add those figures up, which is exactly how a “cheap” car becomes an expensive one. The DrivePedia True Cost Calculator does the adding up for you, turning the sticker price into the only number that matters: what the car will really cost you to own.

For UK drivers this is especially revealing. Vehicle Excise Duty, insurance group ratings that punish the unwary, servicing costs that vary wildly by brand, and fuel bills driven by some of Europe’s highest pump prices all pile on top of the purchase price. The calculator combines all of it — price, fuel at your mileage, insurance, maintenance and tax, less estimated depreciation — into a single five-year net figure and a simple monthly equivalent. When two cars differ by £1,000 on the forecourt but £3,000 over five years, you deserve to know before you buy, not after.

How the True Cost Calculator works

Choose any car from the DrivePedia database and the calculator pulls its real figures automatically: on-the-road price, WLTP fuel economy, typical annual insurance, maintenance and road tax. Tell it how many miles you drive a year — the default is 8,000, the UK average for a private motorist — and it scales the fuel bill to match. It then builds the full five-year picture: purchase price plus five years of fuel, insurance, maintenance and tax, minus what the car should still be worth at the end. The result is shown two ways: the five-year net total for the big-picture thinkers, and the monthly equivalent for anyone comparing against a finance quote or a monthly budget. High-mileage drivers will notice fuel dominating the total, while low-mileage owners will see depreciation doing most of the damage — the calculator shows you which kind of owner you are.

Worked example

Take the Volkswagen Golf 2024, priced at £27,995 with 47.9 mpg combined economy. The calculator starts with the purchase price, then adds five years of running costs at 8,000 miles a year: fuel, insurance at around £624 a year, maintenance near £462 a year, and £190 a year in road tax. Then it subtracts the car’s estimated residual value after five years — because money you get back at resale was never truly spent. The final five-year net cost is £29,522, which works out at £492 a month. Notice what that tells you: the Golf’s true monthly cost of ownership is a figure you can hold directly against a PCP or lease quote. If a dealer offers you the same car for £550 a month on finance, you now know exactly how much convenience is costing you.

Frequently asked questions

What does “net” mean in the five-year figure?
Net means purchase price plus all five years of running costs — fuel, insurance, maintenance and road tax — minus the car’s estimated resale value at the end of year five. It is the honest total: the money that actually leaves your pocket and never comes back. Gross figures that ignore depreciation flatter expensive cars; net figures do not.
Are the insurance estimates personalised to me?
No, and they should not be mistaken for a quote. The calculator uses a typical annual premium per model for an average UK driver profile. Your real premium depends on your age, postcode, driving history and no-claims bonus. Treat our figure as a fair basis for comparing models against each other, then get real quotes for your shortlist.
Which fuel price does the calculator use?
Current typical UK pump prices for petrol and diesel, applied to each car’s WLTP combined economy at your annual mileage. Electric models use a representative home-charging electricity rate instead. Fuel prices move, so the calculator is periodically updated — but the relative ranking of thirsty versus frugal cars barely shifts, which is what matters most.
Can I change the annual mileage?
Yes — mileage is the single most important input you control. The default is 8,000 miles, close to the UK private average, but a 15,000-mile-a-year driver will see fuel dominate the maths while a 4,000-mile driver will barely notice economy differences. Adjust it to your reality and watch how the five-year ranking of your shortlist reshuffles.
Does the five-year cost include MOTs?
Routine maintenance estimates include servicing and wear items, and cars over three years old will need annual MOTs in the real world. The test fee itself is modest — currently capped at £54.85 — so it barely moves the five-year total, but any failures and repairs it uncovers would. Budget a small contingency on top if you are buying a car you will keep past year three.

Estimates use average UK depreciation curves. Your mileage, driving style and insurer will move the numbers.