Data as of: DVSA MOT results to 2025
Sinnis ZS 125-86 Terrain: MOT pass rate by registration year
Which ZS 125-86 Terrain years pass first time, and which fall short of the model's 70.8% average, from 2,152 DVSA tests.
Pass rate by registration year
Highest pass rate: 2017 (73.6% of 522 tests). Lowest: 2019 (67.6% of 469). Years more than two points below the model average: 2019.
| Registered | Tests | First-time pass | vs model (70.8%) |
|---|---|---|---|
| 2017 | 522 | 73.6% | +2.8 pp |
| 2018 | 620 | 69.0% | -1.8 pp |
| 2019 | 469 | 67.6% | -3.2 pp |
| 2020 | 489 | 73.0% | +2.2 pp |
| 2021 | 52 | 73.1% | +2.3 pp |
Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years. A first-time MOT pass is a roadworthiness check, not a full mechanical inspection.
Pass rate over time
Questions
- Which ZS 125-86 Terrain years have the lowest MOT pass rate?
- 2019 registered examples pass first time less often than the Sinnis ZS 125-86 Terrain overall (70.8%); the 2019 cohort is lowest at 67.6% from 469 tests.
- Which ZS 125-86 Terrain year has the highest MOT pass rate?
- 2017, at 73.6% of 522 first tests (2005–2025). Years more than two points above the model average: 2017, 2020, 2021.
- How much does the ZS 125-86 Terrain pass rate vary by year?
- 6.0 percentage points between the highest (2017, 73.6%) and lowest (2019, 67.6%) cohorts with at least 50 tests. Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
Full report: Sinnis ZS 125-86 Terrain reliability, failures and mileage · ranked #4675 of 5428 models· other Sinnis models: ZS 125-79 Hoodlum, XF, Shuttle, JS, QM, RSX 125