Piaggio GTS300: MOT pass rate by registration year

Which GTS300 years pass first time, and which fall short of the model's 88.9% average, from 1,391 DVSA tests.

2012

highest-passing year · 91.2%

2009

lowest-passing year · 87.6%

3.6pp

spread across 5 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: 2012 (91.2% of 91 tests). Lowest: 2009 (87.6% of 330).

Registered	Tests	First-time pass	vs model (88.9%)
2008	240	89.6%	+0.7 pp
2009	330	87.6%	-1.3 pp
2010	407	88.0%	-0.9 pp
2011	259	91.1%	+2.2 pp
2012	91	91.2%	+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

first-time pass rate by test year · 2012–2025

Questions

Which GTS300 years have the lowest MOT pass rate?: none: no registration year of the Piaggio GTS300 falls more than two points under the model's 88.9% overall pass rate.
Which GTS300 year has the highest MOT pass rate?: 2012, at 91.2% of 91 first tests (2005–2025). Years more than two points above the model average: 2011, 2012.
How much does the GTS300 pass rate vary by year?: 3.6 percentage points between the highest (2012, 91.2%) and lowest (2009, 87.6%) 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: Piaggio GTS300 reliability, failures and mileage · ranked #1305 of 5428 models· other Piaggio models: Vespa, Zip, NRG, PX 125 (vespa), PX 200 E, ET2