Tr4
Triumph · on record 1994 to 2025
GROWING
Red List classification, from population, five year trajectory and survival against peak. Reviewed each census.
2,016
licensed vehicles
2025 census
2025 census
100.0% of the peak fleet remains licensed
457
declared SORN
total surviving
peak 2,016 in 2025 · +14 vehicles a year, five year trend
Population history
Licensed and SORN vehicles at each census. Filters apply to the population, MOT and registration figures together.
Licensed
SORN
Latest census observation
Inside the surviving fleet
AutoCensus parses every DVLA variant description, so the fleet can be read by fuel and specification rather than as one number.
First registrations by year
When surviving examples first joined the British fleet.
Recent UK first registrations
This family is no longer sold new. These figures are imports and historic vehicles joining the British register for the first time.
MOT reliability
DVSA test results for this family, 2005 to 2025.
Pass rate by year
| Failure reason | Failures | Share of all tests |
|---|---|---|
| The windscreen washers do not provide enough liquid to clear the windscreen in conjunction with the wiper(s) | 263 | 2.2% |
| The horn inoperative | 221 | 1.8% |
| The calculated parking brake efficiency is too low | 197 | 1.6% |
| A stop lamp inoperative or less than 50% of the light sources illuminating | 196 | 1.6% |
| Amalgamation of failures for all headlamp testers | 135 | 1.1% |
| A wiper blade insecure, missing or in such a condition that it does not clear the windscreen effectively to give the driver an adequate view of the road (through the windscreen) to the left and right sides of the vehicle, as well as to the front | 124 | 1.0% |
| The calculated out-of-balance of the brakes across an axle is greater than 30% | 121 | 1.0% |
| Significant braking effort recorded on a road wheel, even though the brake is not applied, indicating that a brake is binding | 113 | 0.9% |
Counted across every recorded test, 2005 to 2025. Advisories are excluded.
Where the Tr4 remains
Based on MOT test locations, 2025. Test location is a proxy: a vehicle is counted where it was last tested, not where it is kept.
| Postcode area | Vehicles tested | Pass rate |
|---|---|---|
| PE | 12 | 100% |
| NG | 11 | 82% |
| HP | 7 | 86% |
| PL | 7 | 71% |
| GU | 7 | 71% |
| WR | 6 | 100% |
| GL | 6 | 83% |
| SY | 6 | 67% |
| TF | 6 | 83% |
| KT | 5 | 100% |
| TN | 5 | 80% |
| ST | 4 | 100% |
| WA | 4 | 100% |
| BD | 4 | 100% |
| BS | 4 | 75% |
| HR | 4 | 100% |
| LL | 4 | 75% |
| B | 4 | 100% |
| CA | 3 | 100% |
| DT | 3 | 67% |
| LU | 3 | 100% |
| LE | 3 | 67% |
| CB | 3 | 100% |
| TA | 3 | 100% |
| LN | 3 | 100% |
| CW | 3 | 67% |
| TQ | 3 | 67% |
| CV | 3 | 100% |
| IP | 3 | 67% |
| PO | 3 | 67% |
| SG | 3 | 67% |
| SS | 3 | 100% |
| SK | 3 | 67% |
| AB | 2 | 100% |
| ME | 2 | 100% |
| DN | 2 | 100% |
| DE | 2 | 100% |
| SO | 2 | 50% |
| NE | 2 | 100% |
| BN | 2 | 100% |
| CH | 2 | 100% |
| S | 2 | 100% |
| CF | 2 | 100% |
| HG | 2 | 100% |
| WV | 2 | 100% |
| EN | 2 | 100% |
| BH | 2 | 100% |
| CO | 2 | 100% |
| DL | 2 | 50% |
| MK | 2 | 50% |
| TS | 1 | 100% |
| OX | 1 | 100% |
| NR | 1 | 100% |
| CM | 1 | 100% |
| TW | 1 | 100% |
| RM | 1 | 100% |
| HA | 1 | 100% |
| HD | 1 | 100% |
| TD | 1 | 100% |
| W | 1 | 100% |
| TR | 1 | 100% |
| IG | 1 | 100% |
| G | 1 | 100% |
| RH | 1 | 100% |
| YO | 1 | 100% |
| LA | 1 | 100% |
| HU | 1 | 100% |
| NN | 1 | 100% |
| WS | 1 | 100% |
| EH | 1 | 100% |
| BB | 1 | 100% |
| RG | 1 | 100% |
| SN | 1 | 100% |
| AL | 1 | 100% |
| FY | 1 | 100% |
How this record was calculated
LATEST CENSUS2025
POPULATION SOURCEDVLA VEH0220 quarterly
HISTORY SOURCEDVLA VEH0120 GB · to 2013
MOT SOURCEDVSA results · to 2025
FAMILY DEFINITIONTRIUMPH TR4
PROCESSED20 Jul 2026
Full methodology
Population figures count vehicles recorded as licensed or SORN in the DVLA quarterly extract. Figures before 2014 cover Great Britain only. Vehicles are grouped into this family by the DVLA GenModel key shown above, with routing rules for known inconsistencies.
Variant figures are parsed from raw DVLA model descriptions and the original string is always retained. Blank transmission fields are shown as manual because DVLA records the field for automatic vehicles.
MOT figures count tests, not vehicles, and geographic figures count each vehicle at its most recent test location. The decline projection is a straight line fitted to the latest five years and is illustrative only.