Used car rankings from MOT data
Most reliable small cars against cars the same age
We ranked 58 small cars by how often they failed their MOT at 3 to 15 years old, each against all cars at the same ages. From 32,663,034 DVSA MOT tests in Great Britain, 2022 to 2025.
MOT data updated
First in this list (n=54,700)24.4%
All cars, same ages37.9%
Difference36% lower
MOT tests used32,663,034
First in this list: Toyota iQ.
How this ranking works
- Data: DVSA anonymised MOT test data, class 4 normal tests in Great Britain (England, Scotland and Wales), 2022 to 2025. Northern Ireland tests its cars separately and is not included. A fail is a test marked fail or passed after a repair at the test station.
- Measure: share of MOTs failed at each age from 3 to 15 years, pooled, against all cars at the same ages.
- Order: by the fail rate divided by the rate for all cars at the same ages, shown as the difference in per cent. Fail rates rise with age, so a ratio keeps a model seen only at older ages from looking better than it is.
- Comparison: all cars means every class 4 MOT test except vans, pickups, taxis, campers, van-based people carriers, motorhome and minibus bases and used imports, weighted to each row's own mix of ages.
- Thresholds: every age behind a row here has at least 5,000 tests. A model generation is ranked only with at least 3 ages of 1,000 tests or more, and a row needs at least 3 ages in this list. A list is published only with at least 10 ranked rows.
- Typical mileage: the median odometer reading at each age, averaged over the row's ages by number of tests.
- Segments: from our checked list that puts each DVSA model family in one segment; this list covers city cars and superminis. Families that change body type between generations without a split in the data are left out.
- Vans, pickups, taxis, campers, van-based people carriers, motorhome and minibus bases, and models sold here mainly as used imports are left out of car lists.
- Years in brackets are the first-use years of a model generation.
The ranking
| # | Model | MOT fail rate | All cars, same ages | Difference | Ages | Tests (n) | Typical mileage |
|---|---|---|---|---|---|---|---|
| 1 | Toyota iQCommon problems · Recalls · ULEZ | 24.4% | 37.9% | 36% lower | 11 to 15 | 54,700 | 65,200 miles |
| 2 | Honda JazzCommon problems · Recalls · ULEZ | 18.7% | 27.6% | 32% lower | 3 to 15 | 995,487 | 46,600 miles |
| 3 | Suzuki CelerioCommon problems · Recalls · ULEZ | 15.2% | 20.3% | 25% lower | 4 to 10 | 108,499 | 33,100 miles |
| 4 | BMW i3Common problems · Recalls · ULEZ | 12.1% | 16.1% | 25% lower | 3 to 9 | 81,239 | 33,600 miles |
| 5 | Mitsubishi MirageCommon problems · Recalls · ULEZ | 19.1% | 24.8% | 23% lower | 7 to 10 | 23,647 | 41,700 miles |
| 6 | Volkswagen up!Common problems · Recalls · ULEZ | 18.9% | 24.1% | 21% lower | 3 to 13 | 501,026 | 41,900 miles |
| 7 | MINI Cooper and OneCommon problems · Recalls · ULEZ | 20.2% | 25.0% | 19% lower | 3 to 15 | 2,082,861 | 52,100 miles |
| 8 | Skoda CitigoCommon problems · Recalls · ULEZ | 19.6% | 23.6% | 17% lower | 4 to 12 | 201,339 | 43,000 miles |
| 9 | Peugeot 108Common problems · Recalls · ULEZ | 17.4% | 20.4% | 15% lower | 3 to 11 | 296,826 | 35,000 miles |
| 10 | Toyota YarisCommon problems · Recalls · ULEZ | 22.2% | 25.6% | 13% lower | 3 to 15 | 1,337,976 | 49,000 miles |
| 11 | Vauxhall VivaCommon problems · ULEZ | 17.1% | 19.7% | 13% lower | 4 to 10 | 149,809 | 32,200 miles |
| 12 | Toyota AygoCommon problems · Recalls · ULEZ | 21.5% | 24.6% | 13% lower | 3 to 15 | 905,453 | 44,100 miles |
| 13 | SEAT MiiCommon problems · Recalls · ULEZ | 23.0% | 26.2% | 12% lower | 6 to 12 | 60,115 | 49,200 miles |
| 14 | Smart FortwoCommon problems · Recalls · ULEZ | 26.0% | 29.4% | 12% lower | 4 to 15 | 194,650 | 45,000 miles |
| 15 | Suzuki Ignis (from 2016)Common problems · Recalls · ULEZ | 13.6% | 15.2% | 10% lower | 3 to 8 | 86,194 | 24,600 miles |
| 16 | Nissan PixoCommon problems · Recalls · ULEZ | 35.3% | 38.5% | 8% lower | 12 to 15 | 36,785 | 59,000 miles |
| 17 | Ford FusionCommon problems · Recalls · ULEZ | 36.8% | 39.5% | 7% lower | 12 to 15 | 86,264 | 72,800 miles |
| 18 | Audi A1Common problems · ULEZ | 21.9% | 23.2% | 6% lower | 3 to 14 | 864,536 | 54,800 miles |
| 19 | Peugeot 107Common problems · Recalls · ULEZ | 33.5% | 35.3% | 5% lower | 8 to 15 | 358,231 | 63,600 miles |
| 20 | Citroen C1Common problems · Recalls · ULEZ | 27.4% | 28.5% | 4% lower | 3 to 15 | 597,337 | 53,300 miles |
What stands out
- Toyota iQ comes first: 24.4% against 37.9% for all cars at the same ages, 36% lower (n=54,700).
- 24 of the 58 ranked small cars fail less often than all cars at the same ages.
- In the 20 shown, the difference from all cars runs from 36% lower to 4% lower.
- One other row is within 5% of the first on the difference, so read close positions as level rather than as a strict order.
Read this with care. A fail rate is not a measure of build quality. How far cars are driven, how they are used and how well owners maintain them all change it, and wear items such as tyres and brake pads are common fails. Compare a model only with cars of the same age. Methodology and limits.
More rankings
All used car rankings · MOT fail rates by make and model · Common problems by model · Recalls by model · ULEZ by model
Looking at one car?
A ranking describes model generations, not the car in front of you. The VetTheCar Buying Report reads one car's MOT history, mileage and recalls and sets them against cars like it.
Source
Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA anonymised MOT test data, class 4 normal MOT tests, 2022 to 2025. MOT data updated 22 September 2026.
Not affiliated with or endorsed by DVSA. How we calculate these figures · Data sources