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Kia Proceed vs Kia Rio: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Kia Proceed
73%
MOT pass rate · 2,403 vehicles
Kia Rio
76%
MOT pass rate · 141,350 vehicles
More reliable
Verdict: On MOT pass rate, the Kia Rio is the more reliable of the two — 76% pass first time versus 73%. It's one signal among several; check the full breakdown below.

Head to head

Measure Kia Proceed Kia Rio
MOT pass rate 73% 76% ✓
MOT failure rate 27% 24% ✓
Faults & advisories per test 2.3 1.8 ✓
Dangerous-fault share 3% 3%
Average mileage 100,756 mi 76,214 mi
Sample size (vehicles) 2,403 141,350

Most common faults

Kia Proceed

  1. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
  6. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Kia Rio

  1. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Reliability FAQ

On MOT pass rate, the Kia Rio is the more reliable of the two — 76% pass first time versus 73%. It's one signal among several; check the full breakdown below.

Full Kia Proceed report Full Kia Rio report Most reliable cars

Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.