Where in Britain does the Porsche Cayman fail its MOT most?
Across Britain, 11.5% of 78,380 initial MOT tests (first attempts) of the Porsche Cayman failed in 2019–2024. It fails most in Dundee (DD): 25.7% against 11.5% elsewhere (+14.2 points). It does best in Dorchester (DT), −6.1 points. Area rates are not age-adjusted.
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · Porsche Cayman MOT statistics · check a Porsche Cayman by registration
Porsche Cayman 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 |
|---|---|---|---|---|---|
| Dundee (DD) | 25.7 | 11.5 | +14.2 | +7.8 to +20.6 | 179 (rough estimate) |
| Kirkcaldy (KY) | 20.5 | 11.5 | +9.0 | +3.6 to +14.4 | 215 (rough estimate) |
| Brighton (BN) | 18.9 | 11.4 | +7.5 | +4.3 to +10.7 | 581 |
| London SW (SW) | 18.7 | 11.4 | +7.2 | +4.2 to +10.3 | 643 |
| Southampton (SO) | 18.0 | 11.4 | +6.6 | +3.9 to +9.2 | 817 |
| Torquay (TQ) | 16.8 | 11.5 | +5.3 | +0.6 to +10.1 | 238 (rough estimate) |
| Bath (BA) | 16.7 | 11.5 | +5.2 | +1.5 to +8.9 | 390 (rough estimate) |
| Liverpool (L) | 15.8 | 11.5 | +4.3 | +0.3 to +8.4 | 310 (rough estimate) |
| Salisbury (SP) | 15.7 | 11.5 | +4.3 | −0.1 to +8.6 | 267 (rough estimate) |
| Aberdeen (AB) | 15.6 | 11.4 | +4.2 | +1.9 to +6.5 | 940 |
| Edinburgh (EH) | 15.4 | 11.4 | +4.0 | +1.6 to +6.3 | 927 |
| Cardiff (CF) | 15.4 | 11.4 | +3.9 | +1.8 to +6.1 | 1,106 |
| Canterbury (CT) | 15.3 | 11.5 | +3.9 | +0.0 to +7.7 | 339 (rough estimate) |
| Motherwell (ML) | 14.9 | 11.5 | +3.4 | −1.1 to +8.0 | 235 (rough estimate) |
| Taunton (TA) | 14.9 | 11.5 | +3.4 | −0.8 to +7.6 | 276 (rough estimate) |
| Walsall (WS) | 14.6 | 11.5 | +3.1 | −0.9 to +7.2 | 294 (rough estimate) |
| Plymouth (PL) | 14.6 | 11.5 | +3.1 | +0.4 to +5.8 | 660 |
| Kilmarnock (KA) | 14.4 | 11.5 | +3.0 | −1.3 to +7.3 | 256 (rough estimate) |
| Darlington (DL) | 14.3 | 11.5 | +2.9 | −1.0 to +6.7 | 321 (rough estimate) |
| Crewe (CW) | 14.3 | 11.5 | +2.8 | −0.2 to +5.8 | 532 |
| Chelmsford (CM) | 14.2 | 11.4 | +2.7 | +0.7 to +4.7 | 1,173 |
| Newport (NP) | 14.1 | 11.5 | +2.6 | −0.5 to +5.8 | 468 (rough estimate) |
| Inverness (IV) | 14.1 | 11.5 | +2.6 | −3.1 to +8.3 | 142 (rough estimate) |
| Bradford (BD) | 14.1 | 11.5 | +2.6 | −1.2 to +6.4 | 327 (rough estimate) |
| Perth (PH) | 14.0 | 11.5 | +2.5 | −1.3 to +6.3 | 322 (rough estimate) |
| London N (N) | 13.9 | 11.5 | +2.4 | −1.1 to +5.9 | 382 (rough estimate) |
| Glasgow (G) | 13.8 | 11.5 | +2.3 | −0.0 to +4.7 | 834 |
| Dudley (DY) | 13.8 | 11.5 | +2.3 | −1.4 to +6.0 | 334 (rough estimate) |
| Truro (TR) | 13.8 | 11.5 | +2.3 | −1.8 to +6.4 | 269 (rough estimate) |
| Hull (HU) | 13.6 | 11.5 | +2.1 | −1.0 to +5.2 | 465 (rough estimate) |
| Gloucester (GL) | 13.4 | 11.5 | +2.0 | +0.2 to +3.8 | 1,465 |
| Doncaster (DN) | 13.4 | 11.5 | +1.9 | −0.6 to +4.4 | 696 |
| Wakefield (WF) | 13.3 | 11.5 | +1.9 | −1.5 to +5.3 | 382 (rough estimate) |
| Lincoln (LN) | 13.1 | 11.5 | +1.6 | −1.9 to +5.2 | 351 (rough estimate) |
| Stoke-on-Trent (ST) | 12.9 | 11.5 | +1.5 | −1.2 to +4.1 | 634 |
| Huddersfield (HD) | 12.9 | 11.5 | +1.4 | −2.7 to +5.5 | 256 (rough estimate) |
| Peterborough (PE) | 12.8 | 11.5 | +1.3 | −0.7 to +3.3 | 1,041 |
| Twickenham (TW) | 12.8 | 11.5 | +1.3 | −1.7 to +4.3 | 478 (rough estimate) |
| Milton Keynes (MK) | 12.6 | 11.5 | +1.1 | −1.4 to +3.5 | 701 |
| Bournemouth (BH) | 12.5 | 11.5 | +1.0 | −1.0 to +3.0 | 1,049 |
| Northampton (NN) | 12.4 | 11.5 | +1.0 | −0.6 to +2.5 | 1,698 |
| Newcastle (NE) | 12.4 | 11.5 | +0.9 | −1.0 to +2.9 | 1,159 |
| Redhill (RH) | 12.4 | 11.5 | +0.9 | −0.7 to +2.5 | 1,685 |
| Harrogate (HG) | 12.4 | 11.5 | +0.9 | −1.7 to +3.5 | 614 |
| Bristol (BS) | 12.3 | 11.5 | +0.9 | −0.9 to +2.7 | 1,320 |
| Exeter (EX) | 12.3 | 11.5 | +0.8 | −1.4 to +2.9 | 914 |
| Harrow (HA) | 12.1 | 11.5 | +0.6 | −3.1 to +4.3 | 298 (rough estimate) |
| Norwich (NR) | 12.0 | 11.5 | +0.6 | −1.5 to +2.7 | 930 |
| Worcester (WR) | 11.6 | 11.5 | +0.1 | −3.3 to +3.5 | 344 (rough estimate) |
| Warrington (WA) | 11.6 | 11.5 | +0.1 | −2.3 to +2.6 | 654 |
| Stevenage (SG) | 11.5 | 11.5 | +0.0 | −2.2 to +2.3 | 763 |
| Tonbridge (TN) | 11.5 | 11.5 | +0.0 | −1.5 to +1.5 | 1,807 |
| Oxford (OX) | 11.5 | 11.5 | −0.0 | −2.1 to +2.1 | 914 |
| Colchester (CO) | 11.5 | 11.5 | −0.0 | −1.9 to +1.8 | 1,151 |
| Derby (DE) | 11.4 | 11.5 | −0.0 | −2.0 to +2.0 | 987 |
| York (YO) | 11.4 | 11.5 | −0.0 | −2.3 to +2.2 | 769 |
| Swansea (SA) | 11.4 | 11.5 | −0.1 | −3.1 to +3.0 | 420 (rough estimate) |
| Croydon (CR) | 11.4 | 11.5 | −0.1 | −3.7 to +3.5 | 298 (rough estimate) |
| Medway (ME) | 11.3 | 11.5 | −0.2 | −3.0 to +2.7 | 477 (rough estimate) |
| Enfield (EN) | 11.3 | 11.5 | −0.2 | −3.1 to +2.6 | 471 (rough estimate) |
| Cambridge (CB) | 11.3 | 11.5 | −0.2 | −2.2 to +1.7 | 1,058 |
| Watford (WD) | 11.2 | 11.5 | −0.3 | −3.5 to +2.8 | 385 (rough estimate) |
| Llandudno (LL) | 11.1 | 11.5 | −0.4 | −3.3 to +2.6 | 431 (rough estimate) |
| Falkirk (FK) | 11.1 | 11.5 | −0.4 | −4.2 to +3.4 | 262 (rough estimate) |
| Leeds (LS) | 11.1 | 11.5 | −0.4 | −2.1 to +1.3 | 1,346 |
| Manchester (M) | 11.0 | 11.5 | −0.5 | −3.1 to +2.1 | 572 |
| London SE (SE) | 10.9 | 11.5 | −0.6 | −3.3 to +2.1 | 513 |
| Sheffield (S) | 10.8 | 11.5 | −0.7 | −2.3 to +0.9 | 1,475 |
| Luton (LU) | 10.7 | 11.5 | −0.8 | −5.0 to +3.3 | 216 (rough estimate) |
| Shrewsbury (SY) | 10.6 | 11.5 | −0.9 | −4.1 to +2.3 | 358 (rough estimate) |
| Uxbridge (UB) | 10.6 | 11.5 | −0.9 | −4.4 to +2.6 | 302 (rough estimate) |
| Cleveland (TS) | 10.6 | 11.5 | −0.9 | −3.1 to +1.2 | 815 |
| Durham (DH) | 10.5 | 11.5 | −1.0 | −5.0 to +3.0 | 228 (rough estimate) |
| Blackburn (BB) | 10.5 | 11.5 | −1.0 | −4.1 to +2.1 | 382 (rough estimate) |
| Wigan (WN) | 10.4 | 11.5 | −1.1 | −5.3 to +3.1 | 202 (rough estimate) |
| Guildford (GU) | 10.4 | 11.5 | −1.2 | −2.4 to +0.1 | 2,458 |
| Portsmouth (PO) | 10.3 | 11.5 | −1.2 | −2.8 to +0.4 | 1,443 |
| Oldham (OL) | 10.3 | 11.5 | −1.2 | −5.6 to +3.2 | 185 (rough estimate) |
| London W (W) | 10.2 | 11.5 | −1.3 | −3.4 to +0.9 | 763 |
| Slough (SL) | 10.2 | 11.5 | −1.3 | −3.2 to +0.7 | 940 |
| Nottingham (NG) | 10.2 | 11.5 | −1.3 | −2.7 to +0.1 | 1,958 |
| Ipswich (IP) | 9.9 | 11.5 | −1.6 | −3.8 to +0.6 | 725 |
| Kingston upon Thames (KT) | 9.8 | 11.5 | −1.7 | −3.3 to −0.1 | 1,323 |
| Romford (RM) | 9.7 | 11.5 | −1.8 | −5.4 to +1.9 | 257 (rough estimate) |
| London E (E) | 9.7 | 11.5 | −1.8 | −3.7 to +0.1 | 907 |
| Stockport (SK) | 9.7 | 11.5 | −1.8 | −3.6 to −0.1 | 1,107 |
| Reading (RG) | 9.7 | 11.5 | −1.9 | −3.2 to −0.5 | 1,983 |
| London NW (NW) | 9.6 | 11.5 | −1.9 | −4.3 to +0.5 | 585 |
| Blackpool (FY) | 9.5 | 11.5 | −2.0 | −5.6 to +1.7 | 252 (rough estimate) |
| Hereford (HR) | 9.4 | 11.5 | −2.1 | −6.1 to +1.9 | 202 (rough estimate) |
| Carlisle (CA) | 9.4 | 11.5 | −2.1 | −5.8 to +1.7 | 234 (rough estimate) |
| Ilford (IG) | 9.3 | 11.5 | −2.2 | −6.1 to +1.7 | 215 (rough estimate) |
| Leicester (LE) | 9.3 | 11.5 | −2.2 | −3.6 to −0.8 | 1,619 |
| Bromley (BR) | 9.1 | 11.5 | −2.4 | −5.6 to +0.8 | 319 (rough estimate) |
| Chester (CH) | 9.1 | 11.5 | −2.4 | −4.1 to −0.8 | 1,186 |
| Swindon (SN) | 9.1 | 11.5 | −2.4 | −4.1 to −0.8 | 1,220 |
| Bolton (BL) | 8.8 | 11.5 | −2.7 | −4.7 to −0.8 | 819 |
| Preston (PR) | 8.8 | 11.5 | −2.7 | −4.8 to −0.7 | 751 |
| Paisley (PA) | 8.5 | 11.5 | −3.0 | −5.1 to −0.9 | 705 |
| Coventry (CV) | 8.4 | 11.5 | −3.1 | −4.8 to −1.4 | 1,067 |
| Wolverhampton (WV) | 8.4 | 11.5 | −3.1 | −5.3 to −1.0 | 643 |
| Birmingham (B) | 8.4 | 11.6 | −3.2 | −4.4 to −2.1 | 2,262 |
| Sunderland (SR) | 8.1 | 11.5 | −3.4 | −8.5 to +1.7 | 111 (rough estimate) |
| Southend-on-Sea (SS) | 7.9 | 11.5 | −3.6 | −5.9 to −1.4 | 557 |
| Hemel Hempstead (HP) | 7.8 | 11.5 | −3.7 | −5.3 to −2.1 | 1,096 |
| Lancaster (LA) | 7.7 | 11.5 | −3.8 | −6.3 to −1.4 | 455 (rough estimate) |
| Dartford (DA) | 7.6 | 11.5 | −3.9 | −5.8 to −2.0 | 748 |
| Sutton (SM) | 7.4 | 11.5 | −4.1 | −8.7 to +0.6 | 121 (rough estimate) |
| St Albans (AL) | 6.8 | 11.5 | −4.7 | −6.4 to −3.0 | 866 |
| Telford (TF) | 6.5 | 11.5 | −5.1 | −8.3 to −1.8 | 217 (rough estimate) |
| Dorchester (DT) | 5.4 | 11.5 | −6.1 | −9.1 to −3.1 | 221 (rough estimate) |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 78,380 (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
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