Data as of: DVSA MOT results to 2025
Piaggio ET4: MOT pass rate by registration year
Which ET4 years pass first time, and which fall short of the model's 74.3% average, from 987 DVSA tests.
Pass rate by registration year
Highest pass rate: 2003 (81.2% of 101 tests). Lowest: 2001 (66.7% of 159). Years more than two points below the model average: 2000, 2001.
| Registered | Tests | First-time pass | vs model (74.3%) |
|---|---|---|---|
| 1999 | 60 | 80.0% | +5.7 pp |
| 2000 | 185 | 71.4% | -2.9 pp |
| 2001 | 159 | 66.7% | -7.6 pp |
| 2002 | 177 | 77.4% | +3.1 pp |
| 2003 | 101 | 81.2% | +6.9 pp |
| 2004 | 184 | 74.5% | +0.2 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 ET4 years have the lowest MOT pass rate?
- 2000, 2001 registered examples pass first time less often than the Piaggio ET4 overall (74.3%); the 2001 cohort is lowest at 66.7% from 159 tests.
- Which ET4 year has the highest MOT pass rate?
- 2003, at 81.2% of 101 first tests (2005–2025). Years more than two points above the model average: 1999, 2002, 2003.
- How much does the ET4 pass rate vary by year?
- 14.5 percentage points between the highest (2003, 81.2%) and lowest (2001, 66.7%) 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: Piaggio ET4 reliability, failures and mileage · ranked #4371 of 5428 models· other Piaggio models: Vespa, Zip, NRG, PX 125 (vespa), PX 200 E, ET2