Derbi GPR: MOT pass rate by registration year

Which GPR years pass first time, and which fall short of the model's 59.1% average, from 629 DVSA tests.

2016

highest-passing year · 69.3%

2008

lowest-passing year · 53.8%

15.5pp

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: 2016 (69.3% of 127 tests). Lowest: 2008 (53.8% of 52). Years more than two points below the model average: 2005, 2006, 2008.

Registered	Tests	First-time pass	vs model (59.1%)
2005	139	54.0%	-5.1 pp
2006	82	56.1%	-3.0 pp
2007	59	57.6%	-1.5 pp
2008	52	53.8%	-5.3 pp
2016	127	69.3%	+10.2 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 · 2010–2022

Questions

Which GPR years have the lowest MOT pass rate?: 2005, 2006, 2008 registered examples pass first time less often than the Derbi GPR overall (59.1%); the 2008 cohort is lowest at 53.8% from 52 tests.
Which GPR year has the highest MOT pass rate?: 2016, at 69.3% of 127 first tests (2005–2025).
How much does the GPR pass rate vary by year?: 15.5 percentage points between the highest (2016, 69.3%) and lowest (2008, 53.8%) 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: Derbi GPR reliability, failures and mileage · ranked #5244 of 5428 models· other Derbi models: Senda, GPR50-R, GPR 50, Atlantis, Predator, Senda SM