Moto Guzzi Griso 8V: MOT pass rate by registration year

Which Griso 8V years pass first time, and which fall short of the model's 90.5% average, from 832 DVSA tests.

2011

highest-passing year · 93.8%

2008

lowest-passing year · 88.1%

5.7pp

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: 2011 (93.8% of 160 tests). Lowest: 2008 (88.1% of 176). Years more than two points below the model average: 2008, 2010.

Registered	Tests	First-time pass	vs model (90.5%)
2008	176	88.1%	-2.4 pp
2009	181	90.1%	-0.4 pp
2010	186	88.2%	-2.3 pp
2011	160	93.8%	+3.3 pp
2012	122	93.4%	+2.9 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 Griso 8V years have the lowest MOT pass rate?: 2008, 2010 registered examples pass first time less often than the Moto Guzzi Griso 8V overall (90.5%); the 2008 cohort is lowest at 88.1% from 176 tests.
Which Griso 8V year has the highest MOT pass rate?: 2011, at 93.8% of 160 first tests (2005–2025). Years more than two points above the model average: 2011, 2012.
How much does the Griso 8V pass rate vary by year?: 5.7 percentage points between the highest (2011, 93.8%) and lowest (2008, 88.1%) 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: Moto Guzzi Griso 8V reliability, failures and mileage · ranked #800 of 5428 models· other Moto Guzzi models: California, Breva, V7, Griso, V11, Le Mans