Z Y Motor ZY 50 QT-7: MOT pass rate by registration year

Which ZY 50 QT-7 years pass first time, and which fall short of the model's 59.6% average, from 527 DVSA tests.

2004

highest-passing year · 63.2%

2006

lowest-passing year · 57.9%

5.3pp

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 (63.2% of 185 tests). Lowest: 2006 (57.9% of 152).

Registered	Tests	First-time pass	vs model (59.6%)
2004	185	63.2%	+3.6 pp
2005	181	58.0%	-1.6 pp
2006	152	57.9%	-1.7 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 · 2007–2013

Questions

Which ZY 50 QT-7 years have the lowest MOT pass rate?: none: no registration year of the Z Y Motor ZY 50 QT-7 falls more than two points under the model's 59.6% overall pass rate.
Which ZY 50 QT-7 year has the highest MOT pass rate?: 2004, at 63.2% of 185 first tests (2005–2025).
How much does the ZY 50 QT-7 pass rate vary by year?: 5.3 percentage points between the highest (2004, 63.2%) and lowest (2006, 57.9%) 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: Z Y Motor ZY 50 QT-7 reliability, failures and mileage · ranked #5227 of 5428 models