Opel Signum 2005
Cars aged 20 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Pass the inspection first time
45.4% ±1.6 pp
M1 average at 20 years – 39.5%
n = 3,622 inspections
Expected mileage now (median)
300,729 km
Percentiles · cars aged 20
p10 216k
p25 259k
p50 301k
p75 351k
p90 396k
| km | |
|---|---|
| p10 | 215,512 km |
| p25 | 258,651 km |
| p50 | 300,729 km |
| p75 | 351,099 km |
| p90 | 395,992 km |
Inspection verdicts
Signum 2005, n = 3,622
| % | |
|---|---|
| No defects | 20.2% |
| Minor defects | 25.2% |
| Major defects | 53.0% |
| Dangerous defects | 1.6% |
Odometer inconsistencies
2.7%
cars whose reading dropped between inspections
CO (petrol, idle)
0.20%
8.6% over the limit · n = 348
Smoke opacity (diesel)
0.53 m⁻¹
18.2% over the limit · n = 3,103
What these numbers say
45.4% of 2005 Opel Signum cars pass the technical inspection at the first attempt (n = 3,622), against an average of 39.5% for all 20-year-old M1 cars.
At 20 years old, a typical one now shows 300,729 km on the odometer; half of them read between 258,651 km and 351,099 km.
An odometer inconsistency was recorded for 25 cars, 2.7% of those assessed.
The median diesel smoke opacity is 0.53 m⁻¹; 18.2% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate