Piaggio B500: MOT pass rate by registration year

Which B500 years pass first time, and which fall short of the model's 79.2% average, from 1,301 DVSA tests.

2004

highest-passing year · 80.5%

2003

lowest-passing year · 77.9%

2.6pp

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: 2004 (80.5% of 440 tests). Lowest: 2003 (77.9% of 547).

Registered	Tests	First-time pass	vs model (79.2%)
2003	547	77.9%	-1.3 pp
2004	440	80.5%	+1.3 pp
2005	244	79.5%	+0.3 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

first-time pass rate by test year · 2006–2021

Questions

Which B500 years have the lowest MOT pass rate?: none: no registration year of the Piaggio B500 falls more than two points under the model's 79.2% overall pass rate.
Which B500 year has the highest MOT pass rate?: 2004, at 80.5% of 440 first tests (2005–2025).
How much does the B500 pass rate vary by year?: 2.6 percentage points between the highest (2004, 80.5%) and lowest (2003, 77.9%) 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 B500 reliability, failures and mileage · ranked #3734 of 5428 models· other Piaggio models: Vespa, Zip, NRG, PX 125 (vespa), PX 200 E, ET2