Reliability surveys are based on owner opinions. Ours is based on facts. We analysed millions of MOT test results from the DVSA to rank every popular car model by its first-time pass rate. No subjective scores, no brand loyalty bias, just the hard data on which cars actually make it through the MOT without issues.
The MOT pass rate is the single best predictor of real-world reliability. A car that passes 93% of the time is not just saving you the hassle of a retest. It is telling you that its components last longer, its build quality is better, and your repair bills will be lower. Over a five-year ownership period, the difference between a 93% pass rate model and a 72% pass rate model could save you more than £2,000 in repairs alone.
What the MOT Pass Rate Really Tells You
The MOT tests 30 or more components on your car, from brakes and tyres to lights, suspension, emissions, and structural integrity. A high pass rate means these parts are lasting well beyond the minimum standard. It reflects the quality of engineering, the durability of materials, and how well the car ages.
Japanese manufacturers consistently dominate the top of the reliability rankings. Toyota, Honda, Suzuki, and Mazda have been building cars with exceptional longevity for decades, and the MOT data confirms it. You can see the full breakdown on our reliability rankings page.
Most Reliable Cars: 3 to 5 Years Old
At this age, most cars are still fairly reliable, but differences are already starting to show. Japanese models maintain pass rates above 93%, while some European brands are already dipping below 88%. The Toyota Corolla is exceptional in this bracket, with a near-perfect record. The Suzuki Vitara and Hyundai Tucson also perform well.
French brands tend to struggle here. The Renault Megane and Peugeot 308, while fine when new, start showing electrical and sensor issues around the four-year mark that pull their pass rates down. It is not catastrophic, but it is a clear trend in the data.
Checking a Specific Car? Get the Full Picture
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Used by thousands of UK car buyers. Data from DVSA and DVLA.
Most Reliable Cars: 5 to 8 Years Old
This is where reliability really matters, because this is the age bracket most used car buyers are shopping in. A five to eight year old car has had time to reveal any inherent weaknesses, and the MOT data makes those weaknesses visible.
The Suzuki Swift is outstanding in this range. Its simple engineering means fewer things can go wrong, and the parts that do wear (brakes, suspension bushes) are inexpensive to replace. The Honda Civic also holds up well, particularly the 1.8 i-VTEC model.
At this age, the gap between the best and worst is significant. A Toyota Yaris at seven years old might have a pass rate of 90% or above. A Fiat Punto of the same age could be down in the low 70s. That difference translates directly into your wallet.
Most Reliable Cars: 8 Years and Older
Once a car passes eight years, reliability becomes the dominant factor in ownership cost. An unreliable car at this age will cost you more in repairs than it is worth. A reliable one will keep running cheaply for years to come.
Toyota and Honda are in a league of their own here. The Yaris, Jazz, and Corolla all maintain pass rates well above 80% even at 10 to 12 years old. Compare that to some luxury brands where a 10-year-old model might have a pass rate below 65%, and you can see why Japanese cars hold their value so well.
The Hyundai i20 deserves special mention for older cars. It does not quite match Toyota for longevity, but it significantly undercuts them on purchase price, making it excellent value for money.
The Least Reliable Used Cars
At the bottom of the reliability table, you will find a mix of older luxury cars, complex SUVs, and models with known engineering weaknesses. Land Rover models frequently appear in the bottom 20, primarily due to electronic and air suspension issues. Older Audi and BMW models also score poorly, not because they are badly built, but because their complex systems develop faults that are expensive to diagnose and fix.
Italian brands have a mixed record. Alfa Romeo models are among the least reliable in MOT data, though they do have passionate owners who keep them going regardless. If you are buying on a budget, steer clear of anything with complex electrics, air suspension, or turbo diesel engines over 2.0 litres unless you have a trusted mechanic.
How to Check a Specific Car's Reliability
Model averages tell you the general picture, but the individual car's history matters just as much. A well-serviced Honda Civic is not the same as a neglected one. Enter any reg plate into our free car checker to see its complete MOT history, including every advisory and failure ever recorded.
Look for patterns: recurring advisories for the same component (like brake discs or suspension springs) suggest a car that is wearing faster than average. A clean MOT history with minimal advisories is a strong indicator of a well-maintained vehicle.
For the full picture, including whether the car has been written off, has outstanding finance, or has been reported stolen, use our full history check.
Reliability vs Running Costs: Not Always the Same
A reliable car is usually cheap to run, but not always. Some reliable cars have large engines with high fuel costs, or fall into expensive tax brackets. Conversely, some unreliable cars are very cheap to fuel. The trick is to find models that score well on both.
Check our cheapest cars to run rankings to see which cars combine reliability with low overall running costs. Browse running costs by model to compare specific makes and models.