Porsche 911 1999
Cars aged 26 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Fewer than 100 inspections – figures are indicative and intervals wide.
Pass the inspection first time
66.7% ±15.3 pp
M1 average at 26 years – 37.1%
n = 33 inspections
Expected mileage now (median)
232,491 km
Percentiles · cars aged 26
p10 132k
p25 184k
p50 232k
p75 281k
p90 330k
| km | |
|---|---|
| p10 | 131,758 km |
| p25 | 183,668 km |
| p50 | 232,491 km |
| p75 | 281,043 km |
| p90 | 330,043 km |
Too few readings for this model – class mileage is shown.
Inspection verdicts
911 1999, n = 33
| % | |
|---|---|
| No defects | 54.5% |
| Minor defects | 12.1% |
| Major defects | 33.3% |
| Dangerous defects | 0.0% |
Odometer inconsistencies
9.1%
cars whose reading dropped between inspections
No emission readings for this group.
What these numbers say
66.7% of 1999 Porsche 911 cars pass the technical inspection at the first attempt (n = 33), against an average of 37.1% for all 26-year-old M1 cars.
This model has too few odometer readings at this age, so the comparison is all 26-year-old M1 cars: typical mileage 232,491 km, half of them between 183,668 km and 281,043 km.
An odometer inconsistency was recorded for 1 car, 9.1% of those assessed.
Figures are not adjusted for how intensively cars are used. How we calculate