The top 10 in this list, model by model
1 · 24% fewer MOT fails
Skoda Kodiaq
Why it ranks here: 24% fewer MOT fails than cars the same age and mileage (ratio 0.76, 95% CI 0.74–0.77), from 133,493 MOT tests at 3 to 8 years. At typical mileage its rate would be about 10.7% (10.5%–10.8%), against 14.1% for all cars at the same ages; raw (its own ages and mileage) 11.5%. Rank range 1–2.
Check before you buy: no part fails significantly more often than on cars the same age (ages 3 to 15).
Suits: buyers looking at a large SUV; the ones tested were 53% petrol, 47% diesel.
2 · 24% fewer MOT fails
Skoda Karoq
Why it ranks here: 24% fewer MOT fails than cars the same age and mileage (ratio 0.76, 95% CI 0.75–0.77), from 183,306 MOT tests at 3 to 7 years. At typical mileage its rate would be about 10.2% (10.1%–10.3%), against 13.4% for all cars at the same ages; raw (its own ages and mileage) 10.2%. Rank range 1–2.
Check before you buy: no part fails significantly more often than on cars the same age (ages 3 to 15).
Suits: buyers looking at a family SUV; the ones tested were 73% petrol, 27% diesel.
3 · About average
Skoda Yeti
Why it ranks here: No clear difference from cars the same age and mileage by our 20% rule (ratio 0.82, 95% CI 0.82–0.83), from 302,523 MOT tests at 5 to 15 years. At typical mileage its rate would be about 22.2% (22.1%–22.4%), against 27.1% for all cars at the same ages; raw (its own ages and mileage) 22.2%. Rank range 3–4.
Check before you buy: no part fails significantly more often than on cars the same age (ages 3 to 15).
Suits: buyers looking at a family SUV; the ones tested were 57% diesel, 43% petrol.
4 · About average
Skoda Octavia
Why it ranks here: No clear difference from cars the same age and mileage by our 20% rule (ratio 0.83, 95% CI 0.82–0.83), from 723,901 MOT tests at 3 to 15 years. At typical mileage its rate would be about 20.0% (19.9%–20.1%), against 24.2% for all cars at the same ages; raw (its own ages and mileage) 21.8%. Rank range 3–4.
Check before you buy: fails on seat belts and airbags 1.2–1.3× as often as cars the same age (5,402 fails in 727,126 MOT tests at ages 3 to 15, not mileage-adjusted).
Suits: buyers looking at a family hatchback; the ones tested were 64% diesel, 35% petrol.
5 · About average
Skoda Superb
Why it ranks here: No clear difference from cars the same age and mileage by our 20% rule (ratio 0.88, 95% CI 0.87–0.89), from 245,715 MOT tests at 3 to 15 years. At typical mileage its rate would be about 19.2% (19.1%–19.4%), against 21.9% for all cars at the same ages; raw (its own ages and mileage) 21.5%. Rank range 5–5.
Check before you buy: fails on suspension 1.37–1.41× as often as cars the same age (19,016 fails in 247,090 MOT tests at ages 3 to 15, not mileage-adjusted); fails on seat belts and airbags 1.3–1.4× as often as cars the same age (1,674 fails in 247,090 MOT tests at ages 3 to 15, not mileage-adjusted); fails on tyres 1.21–1.25× as often as cars the same age (18,395 fails in 247,090 MOT tests at ages 3 to 15, not mileage-adjusted).
Suits: buyers looking at an executive car; the ones tested were 76% diesel, 21% petrol.
6 · About average
Skoda Roomster
Why it ranks here: No clear difference from cars the same age and mileage by our 20% rule (ratio 0.92, 95% CI 0.91–0.94), from 60,799 MOT tests at 7 to 15 years. At typical mileage its rate would be about 31.1% (30.7%–31.5%), against 33.6% for all cars at the same ages; raw (its own ages and mileage) 30.1%. Rank range 6–7.
Check before you buy: fails on body and structure 1.4–1.5× as often as cars the same age (3,350 fails in 61,337 MOT tests at ages 3 to 15, not mileage-adjusted).
Suits: buyers looking at an MPV; the ones tested were 62% petrol, 38% diesel.
7 · About average
Skoda Citigo
Why it ranks here: No clear difference from cars the same age and mileage by our 20% rule (ratio 0.93, 95% CI 0.92–0.94), from 208,866 MOT tests at 3 to 13 years. At typical mileage its rate would be about 21.9% (21.7%–22.1%), against 23.6% for all cars at the same ages; raw (its own ages and mileage) 19.4%. Rank range 6–7.
Check before you buy: no part fails significantly more often than on cars the same age (ages 3 to 15).
Suits: buyers looking at a city car; the ones tested were mostly petrol.
8 · About average
Skoda Kamiq
Why it ranks here: No clear difference from cars the same age and mileage by our 20% rule (ratio 0.97, 95% CI 0.94–0.99), from 47,654 MOT tests at 3 to 5 years. At typical mileage its rate would be about 11.2% (10.9%–11.5%), against 11.6% for all cars at the same ages; raw (its own ages and mileage) 10.8%. Rank range 8–9.
Check before you buy: fails on brakes 2.3–2.6× as often as cars the same age (2,010 fails in 47,898 MOT tests at ages 3 to 15, not mileage-adjusted).
Suits: buyers looking at a small SUV; the ones tested were mostly petrol.
9 · About average
Skoda Fabia
Why it ranks here: About as many MOT fails as cars the same age and mileage (ratio 1.00, 95% CI 1.00–1.00), from 765,587 MOT tests at 3 to 15 years. At typical mileage its rate would be about 26.1% (26.0%–26.2%), against 26.1% for all cars at the same ages; raw (its own ages and mileage) 25.1%. Rank range 9–10.
Check before you buy: fails on body and structure 1.2–1.3× as often as cars the same age (22,678 fails in 769,054 MOT tests at ages 3 to 15, not mileage-adjusted).
Suits: buyers looking at a supermini; the ones tested were 80% petrol, 20% diesel.
10 · About average
Skoda Scala
Why it ranks here: About as many MOT fails as cars the same age and mileage (ratio 1.01, 95% CI 0.97–1.04), from 23,918 MOT tests at 3 to 6 years. At typical mileage its rate would be about 12.2% (11.8%–12.6%), against 12.1% for all cars at the same ages; raw (its own ages and mileage) 11.9%. Rank range 8–11.
Check before you buy: fails on brakes 2.1–2.3× as often as cars the same age (992 fails in 24,182 MOT tests at ages 3 to 15, not mileage-adjusted).
Suits: buyers looking at a family hatchback; the ones tested were mostly petrol.
How we rank
2,784,883 MOT tests from 2022–2025 of cars 3 to 15 years old. For each model and age, the tests are split into 6 mileage bands (<30k, 30-60k, 60-90k, 90-120k, 120-150k, 150k+); the expected fails are what all cars of that age would fail in the same bands, corrected to the model's own mix of test years. The ratio of the model's fails to the expected fails sets its place. The adjusted rate is that ratio times the all-car rate at the model's own ages, so it reads against that rate: a model tested only at 3 to 5 years is compared with young cars, not with this list's average.
The 95% intervals cover sampling error only (Wilson intervals). A model is called fewer or more only when its interval is at least 20% from the all-car rate, overall and at 3 or more ages ("close to average" when the interval excludes the all-car rate by less); awards use the same rule. Test years: Each model's expected fails therefore use its own mix of test years 2022–2025, age by age; the mileage bands themselves pool the four years, which can leave a small bias in favour of models first sold late in the window. Generations of a model are pooled unless the data splits them; each row says which years it covers. How we compare
Limitation: MOT tests record roadworthiness defects on the test day. They do not record breakdowns, engine or gearbox faults, or repair costs, and they cannot separate design from upkeep: a model whose owners service it before every MOT looks better here. Only cars still on the road are tested.