Ducati S4 RS: MOT pass rate by registration year

Which S4 RS years pass first time, and which fall short of the model's 88.3% average, from 665 DVSA tests.

2008

highest-passing year · 91.3%

2006

lowest-passing year · 86.8%

4.5pp

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 (91.3% of 80 tests). Lowest: 2006 (86.8% of 365).

Registered	Tests	First-time pass	vs model (88.3%)
2006	365	86.8%	-1.5 pp
2007	190	88.9%	+0.6 pp
2008	80	91.3%	+3.0 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 · 2009–2019

Questions

Which S4 RS years have the lowest MOT pass rate?: none: no registration year of the Ducati S4 RS falls more than two points under the model's 88.3% overall pass rate.
Which S4 RS year has the highest MOT pass rate?: 2008, at 91.3% of 80 first tests (2005–2025).
How much does the S4 RS pass rate vary by year?: 4.5 percentage points between the highest (2008, 91.3%) and lowest (2006, 86.8%) 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: Ducati S4 RS reliability, failures and mileage · ranked #1505 of 5428 models· other Ducati models: 748, Multistrada, 996, 916, 900, M