Buying guide · 8 min read

The cheapest used cars to insure and run in the UK

Running costs are typically driven more by insurance group, fuel economy and parts prices than by the purchase price itself. This guide covers the models commonly cited in the trade as cheap to keep on the road, and the specific weak points worth checking on each before you commit.

Written by the VehicleFaults Research Team

1. Small petrol cars with low insurance groups

Insurance groups typically run from 1 to 50, and models in groups 1-10 are usually the cheapest to cover, particularly for younger or newer drivers.

Kia Picanto · commonly insurance groups 1-5 · check the clutch biting point on higher-mileage examples
Hyundai i10 · commonly insurance groups 2-6 · check for a rattling heat shield, a common but low-cost fix
Volkswagen Up · commonly insurance groups 1-4 · check for shared engine issues with the Škoda Citigo and SEAT Mii, including oil consumption on some 1.0 units
Toyota Aygo · commonly insurance groups 1-4 · check for worn front suspension bushes, which can cause knocking over bumps
Skoda Citigo · commonly insurance groups 1-4 · check service history, since these are often bought as first cars and can be poorly maintained

2. Fuel-efficient models worth considering for high-mileage drivers

Diesel can still make sense for drivers covering significant motorway miles, though petrol and hybrid options typically suit lower annual mileages better.

Toyota Prius · commonly returns strong real-world economy · check hybrid battery health via a specialist, since replacement can be several hundred to over a thousand pounds if out of warranty
Ford Fiesta 1.0 EcoBoost · commonly efficient on a run · check for cambelt-in-oil-bath issues on early examples, which can contaminate the oil if not serviced correctly
Skoda Fabia 1.0 TSI/MPI · commonly economical and low-group · check for oil leaks and listen for excessive engine noise on cold start
Dacia Sandero 1.0 SCe · low purchase price and modest running costs · check that servicing has kept pace, as these are often bought on tight budgets and can be under-maintained

3. Wider running costs beyond insurance and fuel

Insurance and fuel are only part of the picture; parts availability, servicing intervals and typical MOT costs all affect the real cost of ownership.

Mainstream brands such as Ford, Vauxhall and Toyota typically have cheaper parts and wider independent garage support than premium brands
Check typical service intervals; some manufacturers specify annual services while others allow longer intervals, affecting yearly cost
Road tax (VED) varies significantly by registration date and CO2 band, so check the specific car's tax band rather than assuming based on model
Tyre size matters; smaller, common tyre sizes are typically cheaper to replace than low-profile or unusual sizes fitted to some trims
Cambelt versus chain matters for future costs; belt-driven engines need replacement typically every 60,000-100,000 miles at £300-£600

4. Checks that protect your running costs, not just the purchase

A cheap car to insure can still be expensive to run if it needs immediate repairs, so these checks matter regardless of the model chosen.

Confirm the insurance group and get a quote before buying, since modifications or non-standard wheels can push a car into a higher group
Check the exhaust and catalytic converter for corrosion, particularly on cars that do mostly short journeys
Look for a recent MOT with few or no advisories, which suggests lower near-term costs
Ask whether the timing belt or chain has been replaced and at what mileage
Check tyre wear and brake pad thickness, since both are common near-term costs on cheaper cars

5. Common mistakes that increase running costs after purchase

Buyers often focus on the purchase price and overlook running cost details that only become apparent after a few months of ownership.

Buying a car with an unusually low insurance quote without checking why, which sometimes reflects an older or discontinued model with poor parts support
Ignoring the difference between manufacturer service intervals and what the previous owner actually did
Assuming a diesel is cheaper to run without checking actual annual mileage, since low-mileage diesel use can bring its own issues such as DPF blockages
Not checking whether the car needs an MOT imminently, which can bring unexpected repair costs shortly after purchase

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Frequently asked questions

What is the cheapest used car to insure in the UK?

Small city cars such as the Kia Picanto, Hyundai i10 and Volkswagen Up are commonly among the cheapest to insure, typically sitting in insurance groups 1-6. Actual premiums still depend on the driver's age, location and no-claims history.

Does a cheaper car always mean cheaper insurance?

No; insurance groups are based on factors like engine size, repair costs and security features rather than purchase price alone. A cheap older car with a larger engine can sometimes cost more to insure than a pricier small-engined model.

Is diesel or petrol cheaper to run for low-mileage drivers?

Petrol is typically cheaper to run for drivers covering under around 10,000 miles a year, since diesel's better fuel economy doesn't offset its usually higher purchase price and maintenance costs at low mileage. Diesel particulate filters can also suffer on cars used mainly for short trips.

How much does it typically cost to service a used car in the UK?

A basic service is commonly £100-£200, and a full service with more parts replaced is typically £150-£350, depending on the model and garage. Costs are usually similar across mainstream brands but higher for premium marques or specialist parts.

Do older cars cost more in road tax?

Road tax depends on the registration date and, for post-2001 cars, the CO2 emissions band, so it varies by model rather than simply by age. Checking the specific car's VED band before buying avoids surprises.

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