Where in Britain does the Porsche 911 fail its MOT most?
Across Britain, 13.3% of 285,717 initial MOT tests (first attempts) of the Porsche 911 failed in 2019–2024. It fails most in London SW (SW): 22.8% against 13.1% elsewhere (+9.7 points). It does best in Paisley (PA), −5.2 points. Area rates are not age-adjusted.
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · Porsche 911 MOT statistics · check a Porsche 911 by registration
Porsche 911 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 SW (SW) | 22.8 | 13.1 | +9.7 | +8.3 to +11.0 | 3,602 |
| Llandrindod Wells (LD) | 20.4 | 13.2 | +7.2 | +0.4 to +13.9 | 137 (rough estimate) |
| Truro (TR) | 19.9 | 13.2 | +6.6 | +4.0 to +9.3 | 866 |
| Southampton (SO) | 19.5 | 13.2 | +6.3 | +4.9 to +7.7 | 3,202 |
| Bath (BA) | 19.4 | 13.2 | +6.2 | +4.0 to +8.3 | 1,319 |
| Brighton (BN) | 19.3 | 13.2 | +6.1 | +4.5 to +7.6 | 2,424 |
| Plymouth (PL) | 18.4 | 13.2 | +5.2 | +3.5 to +6.9 | 2,108 |
| Bristol (BS) | 18.2 | 13.2 | +5.0 | +3.8 to +6.3 | 3,778 |
| Kirkcaldy (KY) | 17.7 | 13.2 | +4.5 | +1.4 to +7.6 | 575 |
| Bournemouth (BH) | 17.3 | 13.2 | +4.1 | +2.9 to +5.3 | 3,806 |
| Torquay (TQ) | 17.0 | 13.2 | +3.8 | +1.1 to +6.4 | 776 |
| Edinburgh (EH) | 17.0 | 13.2 | +3.7 | +2.4 to +5.1 | 2,948 |
| Dundee (DD) | 16.7 | 13.2 | +3.5 | +0.2 to +6.8 | 491 (rough estimate) |
| Motherwell (ML) | 16.6 | 13.2 | +3.3 | +0.8 to +5.8 | 822 |
| Taunton (TA) | 16.3 | 13.2 | +3.1 | +0.7 to +5.5 | 912 |
| Harrogate (HG) | 16.3 | 13.2 | +3.1 | +1.3 to +4.9 | 1,644 |
| Gloucester (GL) | 16.2 | 13.2 | +3.0 | +2.0 to +4.1 | 4,792 |
| Stoke-on-Trent (ST) | 16.1 | 13.2 | +2.8 | +1.2 to +4.5 | 1,854 |
| Salisbury (SP) | 16.0 | 13.2 | +2.8 | +0.5 to +5.1 | 980 |
| Guildford (GU) | 15.9 | 13.2 | +2.7 | +2.0 to +3.4 | 9,465 |
| Aberdeen (AB) | 15.8 | 13.2 | +2.5 | +1.1 to +4.0 | 2,449 |
| Huddersfield (HD) | 15.7 | 13.2 | +2.5 | +0.2 to +4.8 | 940 |
| Inverness (IV) | 15.7 | 13.2 | +2.5 | −1.4 to +6.3 | 344 (rough estimate) |
| Hereford (HR) | 15.5 | 13.2 | +2.2 | −0.6 to +5.1 | 627 |
| Peterborough (PE) | 15.4 | 13.2 | +2.2 | +0.9 to +3.5 | 3,016 |
| Exeter (EX) | 15.4 | 13.2 | +2.2 | +0.9 to +3.5 | 2,870 |
| Dorchester (DT) | 15.4 | 13.2 | +2.1 | −0.1 to +4.4 | 1,002 |
| Worcester (WR) | 15.3 | 13.2 | +2.0 | +0.1 to +4.0 | 1,284 |
| Nottingham (NG) | 15.2 | 13.2 | +2.0 | +1.0 to +2.9 | 5,639 |
| Milton Keynes (MK) | 15.2 | 13.2 | +1.9 | +0.5 to +3.3 | 2,577 |
| Oxford (OX) | 14.9 | 13.2 | +1.7 | +0.7 to +2.7 | 4,714 |
| Cardiff (CF) | 14.9 | 13.2 | +1.7 | +0.3 to +3.1 | 2,639 |
| Walsall (WS) | 14.9 | 13.2 | +1.7 | −0.4 to +3.7 | 1,215 |
| Blackpool (FY) | 14.6 | 13.2 | +1.4 | −1.1 to +3.9 | 758 |
| Norwich (NR) | 14.4 | 13.2 | +1.2 | −0.0 to +2.4 | 3,308 |
| Falkirk (FK) | 14.3 | 13.2 | +1.1 | −1.6 to +3.8 | 641 |
| Newport (NP) | 14.3 | 13.2 | +1.0 | −1.0 to +3.1 | 1,107 |
| Northampton (NN) | 14.2 | 13.2 | +1.0 | +0.1 to +1.9 | 5,631 |
| Ipswich (IP) | 14.2 | 13.2 | +0.9 | −0.4 to +2.2 | 2,719 |
| Redhill (RH) | 14.0 | 13.2 | +0.8 | −0.0 to +1.6 | 7,182 |
| Kingston upon Thames (KT) | 13.9 | 13.2 | +0.7 | −0.1 to +1.5 | 7,368 |
| Kilmarnock (KA) | 13.9 | 13.2 | +0.7 | −2.1 to +3.5 | 574 |
| Swansea (SA) | 13.9 | 13.2 | +0.7 | −1.3 to +2.7 | 1,156 |
| Harrow (HA) | 13.9 | 13.2 | +0.6 | −1.3 to +2.6 | 1,267 |
| Newcastle (NE) | 13.8 | 13.2 | +0.6 | −0.5 to +1.7 | 3,641 |
| Portsmouth (PO) | 13.7 | 13.2 | +0.5 | −0.5 to +1.5 | 4,562 |
| Chelmsford (CM) | 13.7 | 13.2 | +0.5 | −0.5 to +1.5 | 5,028 |
| Stockport (SK) | 13.7 | 13.2 | +0.5 | −0.6 to +1.5 | 3,979 |
| Crewe (CW) | 13.7 | 13.2 | +0.4 | −1.3 to +2.1 | 1,618 |
| Canterbury (CT) | 13.6 | 13.2 | +0.3 | −1.3 to +2.0 | 1,721 |
| Carlisle (CA) | 13.5 | 13.2 | +0.3 | −2.3 to +2.9 | 650 |
| Bromley (BR) | 13.4 | 13.2 | +0.2 | −1.5 to +1.9 | 1,510 |
| Swindon (SN) | 13.4 | 13.2 | +0.2 | −0.9 to +1.2 | 4,081 |
| York (YO) | 13.3 | 13.2 | +0.1 | −1.2 to +1.4 | 2,532 |
| Galashiels (TD) | 13.3 | 13.2 | +0.1 | −4.2 to +4.4 | 240 (rough estimate) |
| Lincoln (LN) | 13.3 | 13.2 | +0.1 | −2.0 to +2.1 | 1,058 |
| Cambridge (CB) | 13.3 | 13.2 | +0.1 | −1.1 to +1.2 | 3,296 |
| Dumfries (DG) | 13.3 | 13.2 | +0.0 | −4.8 to +4.9 | 188 (rough estimate) |
| Doncaster (DN) | 13.2 | 13.3 | −0.0 | −1.6 to +1.5 | 1,833 |
| Perth (PH) | 13.1 | 13.3 | −0.1 | −2.3 to +2.1 | 915 |
| Manchester (M) | 13.1 | 13.3 | −0.2 | −1.8 to +1.5 | 1,542 |
| Leeds (LS) | 13.1 | 13.3 | −0.2 | −1.1 to +0.8 | 4,656 |
| Darlington (DL) | 13.0 | 13.3 | −0.2 | −2.2 to +1.7 | 1,114 |
| London NW (NW) | 13.0 | 13.3 | −0.3 | −1.2 to +0.7 | 4,845 |
| Derby (DE) | 12.8 | 13.3 | −0.4 | −1.7 to +0.8 | 2,698 |
| Coventry (CV) | 12.6 | 13.3 | −0.6 | −1.8 to +0.5 | 3,270 |
| Hull (HU) | 12.6 | 13.3 | −0.7 | −2.6 to +1.3 | 1,106 |
| Hemel Hempstead (HP) | 12.5 | 13.3 | −0.8 | −1.6 to +0.1 | 5,848 |
| Glasgow (G) | 12.4 | 13.3 | −0.9 | −2.3 to +0.5 | 2,177 |
| Watford (WD) | 12.3 | 13.3 | −0.9 | −2.2 to +0.4 | 2,432 |
| Llandudno (LL) | 12.1 | 13.3 | −1.1 | −2.9 to +0.6 | 1,328 |
| Twickenham (TW) | 12.0 | 13.3 | −1.3 | −2.6 to +0.0 | 2,298 |
| Tonbridge (TN) | 11.9 | 13.3 | −1.3 | −2.0 to −0.7 | 9,890 |
| Dudley (DY) | 11.8 | 13.3 | −1.4 | −3.5 to +0.6 | 981 |
| Sheffield (S) | 11.7 | 13.3 | −1.5 | −2.5 to −0.6 | 4,600 |
| Bolton (BL) | 11.7 | 13.3 | −1.5 | −2.8 to −0.3 | 2,492 |
| Medway (ME) | 11.6 | 13.3 | −1.6 | −3.1 to −0.2 | 1,944 |
| Durham (DH) | 11.5 | 13.3 | −1.7 | −4.7 to +1.2 | 451 (rough estimate) |
| London W (W) | 11.5 | 13.3 | −1.7 | −2.6 to −0.8 | 4,932 |
| Warrington (WA) | 11.5 | 13.3 | −1.8 | −3.1 to −0.5 | 2,360 |
| Liverpool (L) | 11.3 | 13.3 | −2.0 | −3.9 to −0.1 | 1,057 |
| Slough (SL) | 11.1 | 13.3 | −2.2 | −3.1 to −1.2 | 4,621 |
| Wakefield (WF) | 11.1 | 13.3 | −2.2 | −4.0 to −0.4 | 1,222 |
| Sunderland (SR) | 11.0 | 13.3 | −2.3 | −5.7 to +1.1 | 328 (rough estimate) |
| Telford (TF) | 11.0 | 13.3 | −2.3 | −4.5 to −0.0 | 738 |
| Colchester (CO) | 11.0 | 13.3 | −2.3 | −3.2 to −1.4 | 4,658 |
| London N (N) | 10.9 | 13.3 | −2.3 | −3.6 to −1.0 | 2,247 |
| Reading (RG) | 11.0 | 13.3 | −2.3 | −3.0 to −1.6 | 8,208 |
| Leicester (LE) | 10.8 | 13.3 | −2.5 | −3.3 to −1.6 | 4,973 |
| London SE (SE) | 10.8 | 13.3 | −2.5 | −3.7 to −1.2 | 2,322 |
| Southend-on-Sea (SS) | 10.8 | 13.3 | −2.5 | −3.7 to −1.2 | 2,297 |
| Bradford (BD) | 10.8 | 13.3 | −2.5 | −4.3 to −0.7 | 1,141 |
| Chester (CH) | 10.8 | 13.3 | −2.5 | −3.6 to −1.4 | 2,990 |
| Ilford (IG) | 10.7 | 13.3 | −2.5 | −4.2 to −0.9 | 1,334 |
| Croydon (CR) | 10.7 | 13.3 | −2.6 | −4.3 to −0.8 | 1,215 |
| Stevenage (SG) | 10.7 | 13.3 | −2.6 | −3.7 to −1.5 | 3,196 |
| Preston (PR) | 10.6 | 13.3 | −2.6 | −4.0 to −1.3 | 2,125 |
| Luton (LU) | 10.6 | 13.3 | −2.7 | −4.6 to −0.8 | 992 |
| Dartford (DA) | 10.3 | 13.3 | −2.9 | −4.1 to −1.7 | 2,522 |
| Sutton (SM) | 10.3 | 13.3 | −3.0 | −5.6 to −0.3 | 505 |
| Cleveland (TS) | 10.3 | 13.3 | −3.0 | −4.2 to −1.7 | 2,214 |
| Enfield (EN) | 10.1 | 13.3 | −3.2 | −4.5 to −1.9 | 2,118 |
| Lancaster (LA) | 10.0 | 13.3 | −3.2 | −5.0 to −1.5 | 1,145 |
| Shrewsbury (SY) | 10.0 | 13.3 | −3.2 | −4.9 to −1.5 | 1,185 |
| Uxbridge (UB) | 9.8 | 13.3 | −3.5 | −4.8 to −2.1 | 1,965 |
| London E (E) | 9.5 | 13.3 | −3.8 | −4.9 to −2.7 | 2,927 |
| Blackburn (BB) | 9.4 | 13.3 | −3.8 | −5.5 to −2.2 | 1,200 |
| St Albans (AL) | 9.4 | 13.3 | −3.9 | −4.8 to −2.9 | 4,002 |
| Wolverhampton (WV) | 9.4 | 13.3 | −3.9 | −5.2 to −2.6 | 2,057 |
| Halifax (HX) | 9.0 | 13.3 | −4.2 | −7.4 to −1.1 | 322 (rough estimate) |
| Oldham (OL) | 8.7 | 13.3 | −4.6 | −6.8 to −2.5 | 659 |
| Romford (RM) | 8.6 | 13.3 | −4.6 | −6.1 to −3.1 | 1,342 |
| Birmingham (B) | 8.5 | 13.4 | −4.9 | −5.5 to −4.3 | 8,183 |
| Wigan (WN) | 8.4 | 13.3 | −4.9 | −7.3 to −2.5 | 514 |
| Paisley (PA) | 8.0 | 13.3 | −5.2 | −6.6 to −3.9 | 1,567 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 285,717 (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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