Where in Britain does the Triumph Stag fail its MOT most?
Across Britain, 21.5% of 8,805 initial MOT tests (first attempts) of the Triumph Stag failed in 2019–2024. It fails most in London W (W): 53.1% against 21.1% elsewhere (+32.0 points). It does best in Southampton (SO), −11.0 points. Area rates are not age-adjusted.
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · Triumph Stag MOT statistics · check a Triumph Stag by registration
Triumph Stag in every postcode area with 100+ tests
From the largest excess over the rest of Britain to the largest shortfall.
| Area | Failed here, % | Rest of Britain, % | Difference, points | 95% interval | Tests |
|---|---|---|---|---|---|
| London W (W) | 53.1 | 21.1 | +32.0 | +23.4 to +40.6 | 130 (rough estimate) |
| Medway (ME) | 41.7 | 20.6 | +21.2 | +16.3 to +26.0 | 405 (rough estimate) |
| Swindon (SN) | 37.7 | 21.3 | +16.4 | +7.4 to +25.3 | 114 (rough estimate) |
| Portsmouth (PO) | 33.1 | 21.4 | +11.7 | +3.5 to +19.9 | 127 (rough estimate) |
| Bristol (BS) | 29.1 | 21.4 | +7.7 | +0.4 to +15.0 | 151 (rough estimate) |
| Birmingham (B) | 27.8 | 21.4 | +6.5 | +0.9 to +12.1 | 255 (rough estimate) |
| Leicester (LE) | 25.7 | 21.4 | +4.3 | −0.3 to +8.9 | 358 (rough estimate) |
| Bournemouth (BH) | 25.7 | 21.5 | +4.2 | −3.9 to +12.3 | 113 (rough estimate) |
| Exeter (EX) | 25.1 | 21.5 | +3.7 | −3.0 to +10.3 | 167 (rough estimate) |
| Gloucester (GL) | 25.0 | 21.5 | +3.5 | −3.3 to +10.4 | 156 (rough estimate) |
| Redhill (RH) | 23.2 | 21.5 | +1.7 | −4.5 to +7.9 | 181 (rough estimate) |
| Chelmsford (CM) | 22.5 | 21.5 | +0.9 | −6.1 to +8.0 | 138 (rough estimate) |
| Peterborough (PE) | 22.1 | 21.5 | +0.5 | −6.5 to +7.5 | 136 (rough estimate) |
| Hemel Hempstead (HP) | 21.8 | 21.5 | +0.3 | −6.8 to +7.3 | 133 (rough estimate) |
| Reading (RG) | 20.8 | 21.6 | −0.7 | −7.4 to +6.0 | 144 (rough estimate) |
| Oxford (OX) | 20.8 | 21.6 | −0.8 | −7.9 to +6.4 | 125 (rough estimate) |
| Brighton (BN) | 20.5 | 21.6 | −1.1 | −8.2 to +6.0 | 127 (rough estimate) |
| Nottingham (NG) | 20.2 | 21.6 | −1.4 | −8.7 to +5.9 | 119 (rough estimate) |
| York (YO) | 20.0 | 21.6 | −1.6 | −9.3 to +6.1 | 105 (rough estimate) |
| Stevenage (SG) | 19.4 | 21.6 | −2.2 | −7.9 to +3.5 | 191 (rough estimate) |
| Norwich (NR) | 19.3 | 21.6 | −2.3 | −7.5 to +2.9 | 228 (rough estimate) |
| Ipswich (IP) | 18.7 | 21.6 | −2.9 | −9.1 to +3.3 | 155 (rough estimate) |
| Northampton (NN) | 17.8 | 21.6 | −3.8 | −10.8 to +3.2 | 118 (rough estimate) |
| Tonbridge (TN) | 17.4 | 21.6 | −4.3 | −9.7 to +1.1 | 196 (rough estimate) |
| Coventry (CV) | 17.2 | 21.6 | −4.4 | −10.4 to +1.5 | 157 (rough estimate) |
| Stoke-on-Trent (ST) | 17.0 | 21.6 | −4.6 | −12.0 to +2.8 | 100 (rough estimate) |
| Guildford (GU) | 16.6 | 21.7 | −5.1 | −9.9 to −0.2 | 235 (rough estimate) |
| Southend-on-Sea (SS) | 15.3 | 21.6 | −6.4 | −12.9 to +0.2 | 118 (rough estimate) |
| Sheffield (S) | 14.7 | 21.7 | −7.0 | −12.6 to −1.4 | 157 (rough estimate) |
| Southampton (SO) | 10.8 | 21.8 | −11.0 | −15.3 to −6.8 | 213 (rough estimate) |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 8,805 (initial tests) · Method: postcode area of the testing station against the same model's tests elsewhere in Britain, difference of two proportions with a 95% interval; named at 3+ points with the interval clear of zero; not age-adjusted · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
Other pages for this model
Triumph Stag body, chassis and structure failures · Triumph Stag brakes failures · Triumph Stag lamps, reflectors and electrics failures · Triumph Stag noise, emissions and leaks failures · Triumph Stag seat belts and airbags failures · Triumph Stag steering failures · Triumph Stag suspension failures · Triumph Stag tyres failures · Triumph Stag visibility failures