Piaggio Zip 100: MOT pass rate by registration year

Which Zip 100 years pass first time, and which fall short of the model's 70.0% average, from 950 DVSA tests.

2008

highest-passing year · 71.4%

2007

lowest-passing year · 69.8%

1.6pp

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: 2008 (71.4% of 234 tests). Lowest: 2007 (69.8% of 378).

Registered	Tests	First-time pass	vs model (70.0%)
2006	323	70.6%	+0.6 pp
2007	378	69.8%	-0.2 pp
2008	234	71.4%	+1.4 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 · 2009–2017

Questions

Which Zip 100 years have the lowest MOT pass rate?: none: no registration year of the Piaggio Zip 100 falls more than two points under the model's 70.0% overall pass rate.
Which Zip 100 year has the highest MOT pass rate?: 2008, at 71.4% of 234 first tests (2005–2025).
How much does the Zip 100 pass rate vary by year?: 1.6 percentage points between the highest (2008, 71.4%) and lowest (2007, 69.8%) 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 Zip 100 reliability, failures and mileage · ranked #4735 of 5428 models· other Piaggio models: Vespa, Zip, NRG, PX 125 (vespa), PX 200 E, ET2