Vespa PX: MOT pass rate by registration year

Which PX years pass first time, and which fall short of the model's 80.7% average, from 694 DVSA tests.

1985

highest-passing year · 81.5%

2001

lowest-passing year · 73.6%

7.9pp

spread across 3 years

Pass rate by registration year

first-time pass rate · cohorts with 50 or more tests · registration year from first use date

Highest pass rate: 1985 (81.5% of 54 tests). Lowest: 2001 (73.6% of 53). Years more than two points below the model average: 1988, 2001.

Registered	Tests	First-time pass	vs model (80.7%)
1985	54	81.5%	+0.8 pp
1988	59	76.3%	-4.4 pp
2001	53	73.6%	-7.1 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

first-time pass rate by test year · 2006–2017

Questions

Which PX years have the lowest MOT pass rate?: 1988, 2001 registered examples pass first time less often than the Vespa PX overall (80.7%); the 2001 cohort is lowest at 73.6% from 53 tests.
Which PX year has the highest MOT pass rate?: 1985, at 81.5% of 54 first tests (2005–2025).
How much does the PX pass rate vary by year?: 7.9 percentage points between the highest (1985, 81.5%) and lowest (2001, 73.6%) 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: Vespa PX reliability, failures and mileage · ranked #3439 of 5428 models· other Vespa models: Douglas, PX125, T5, PX200, 125, Sprint