Where in Britain does the Ford Sierra fail its MOT most?
Across Britain, 16.7% of 17,679 initial MOT tests (first attempts) of the Ford Sierra failed in 2019–2024. It fails most in Bath (BA): 27.4% against 16.6% elsewhere (+10.8 points). It does best in Crewe (CW), −9.5 points. Area rates are not age-adjusted.
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · Ford Sierra MOT statistics · check a Ford Sierra by registration
Ford Sierra 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 |
|---|---|---|---|---|---|
| Bath (BA) | 27.4 | 16.6 | +10.8 | +3.8 to +17.8 | 157 (rough estimate) |
| Bristol (BS) | 26.7 | 16.5 | +10.2 | +5.1 to +15.3 | 296 (rough estimate) |
| Brighton (BN) | 26.0 | 16.6 | +9.5 | +3.6 to +15.3 | 219 (rough estimate) |
| Exeter (EX) | 26.0 | 16.6 | +9.5 | +3.3 to +15.6 | 196 (rough estimate) |
| Plymouth (PL) | 24.9 | 16.6 | +8.3 | +2.9 to +13.8 | 245 (rough estimate) |
| Swindon (SN) | 23.9 | 16.6 | +7.3 | +0.2 to +14.4 | 138 (rough estimate) |
| Croydon (CR) | 22.9 | 16.6 | +6.3 | −1.6 to +14.2 | 109 (rough estimate) |
| Portsmouth (PO) | 22.9 | 16.6 | +6.3 | +1.5 to +11.0 | 302 (rough estimate) |
| Leicester (LE) | 22.0 | 16.6 | +5.4 | +0.2 to +10.6 | 250 (rough estimate) |
| Canterbury (CT) | 22.0 | 16.6 | +5.4 | −1.3 to +12.0 | 150 (rough estimate) |
| Llandudno (LL) | 21.7 | 16.6 | +5.0 | −2.4 to +12.4 | 120 (rough estimate) |
| Taunton (TA) | 21.4 | 16.6 | +4.7 | −2.7 to +12.2 | 117 (rough estimate) |
| Norwich (NR) | 21.1 | 16.6 | +4.5 | +0.0 to +9.0 | 322 (rough estimate) |
| Redhill (RH) | 21.0 | 16.6 | +4.4 | −1.1 to +9.9 | 214 (rough estimate) |
| Newport (NP) | 20.9 | 16.6 | +4.3 | −2.8 to +11.3 | 129 (rough estimate) |
| Warrington (WA) | 20.6 | 16.6 | +3.9 | −2.1 to +9.9 | 175 (rough estimate) |
| Peterborough (PE) | 20.2 | 16.6 | +3.7 | +0.1 to +7.3 | 494 (rough estimate) |
| Colchester (CO) | 20.2 | 16.6 | +3.5 | −1.5 to +8.6 | 243 (rough estimate) |
| Gloucester (GL) | 19.9 | 16.7 | +3.2 | −3.5 to +9.9 | 136 (rough estimate) |
| Nottingham (NG) | 19.5 | 16.6 | +2.8 | −1.7 to +7.4 | 298 (rough estimate) |
| Shrewsbury (SY) | 19.5 | 16.7 | +2.8 | −4.5 to +10.1 | 113 (rough estimate) |
| Bradford (BD) | 19.2 | 16.7 | +2.6 | −4.2 to +9.4 | 130 (rough estimate) |
| Oxford (OX) | 19.1 | 16.7 | +2.5 | −3.6 to +8.6 | 162 (rough estimate) |
| Milton Keynes (MK) | 18.9 | 16.7 | +2.2 | −3.9 to +8.3 | 159 (rough estimate) |
| Bournemouth (BH) | 18.9 | 16.7 | +2.2 | −3.4 to +7.8 | 191 (rough estimate) |
| Manchester (M) | 18.7 | 16.7 | +2.1 | −3.8 to +7.9 | 171 (rough estimate) |
| Cleveland (TS) | 18.6 | 16.7 | +2.0 | −4.4 to +8.3 | 145 (rough estimate) |
| Darlington (DL) | 18.4 | 16.7 | +1.8 | −5.7 to +9.3 | 103 (rough estimate) |
| Wolverhampton (WV) | 18.3 | 16.7 | +1.6 | −4.9 to +8.1 | 137 (rough estimate) |
| Preston (PR) | 18.2 | 16.7 | +1.5 | −5.1 to +8.1 | 132 (rough estimate) |
| Ipswich (IP) | 18.0 | 16.7 | +1.4 | −3.2 to +6.0 | 272 (rough estimate) |
| Lancaster (LA) | 17.8 | 16.7 | +1.1 | −6.2 to +8.4 | 107 (rough estimate) |
| Chester (CH) | 17.6 | 16.7 | +0.9 | −5.4 to +7.2 | 142 (rough estimate) |
| Dartford (DA) | 17.5 | 16.7 | +0.8 | −4.2 to +5.9 | 217 (rough estimate) |
| Guildford (GU) | 17.4 | 16.7 | +0.7 | −4.7 to +6.1 | 190 (rough estimate) |
| Walsall (WS) | 17.0 | 16.7 | +0.3 | −5.4 to +5.9 | 171 (rough estimate) |
| Stoke-on-Trent (ST) | 16.4 | 16.7 | −0.2 | −4.6 to +4.1 | 286 (rough estimate) |
| Cardiff (CF) | 16.4 | 16.7 | −0.3 | −5.9 to +5.3 | 171 (rough estimate) |
| Aberdeen (AB) | 16.2 | 16.7 | −0.4 | −6.3 to +5.4 | 154 (rough estimate) |
| Coventry (CV) | 16.2 | 16.7 | −0.5 | −5.3 to +4.3 | 229 (rough estimate) |
| Edinburgh (EH) | 15.9 | 16.7 | −0.8 | −6.5 to +5.0 | 157 (rough estimate) |
| Chelmsford (CM) | 15.7 | 16.7 | −1.0 | −5.0 to +3.1 | 324 (rough estimate) |
| Wakefield (WF) | 15.7 | 16.7 | −1.0 | −6.6 to +4.5 | 166 (rough estimate) |
| Kirkcaldy (KY) | 15.6 | 16.7 | −1.1 | −7.9 to +5.7 | 109 (rough estimate) |
| Truro (TR) | 15.4 | 16.7 | −1.3 | −7.0 to +4.4 | 156 (rough estimate) |
| Southampton (SO) | 15.3 | 16.7 | −1.4 | −6.1 to +3.3 | 229 (rough estimate) |
| Reading (RG) | 15.1 | 16.7 | −1.6 | −6.2 to +3.0 | 232 (rough estimate) |
| Birmingham (B) | 15.1 | 16.7 | −1.7 | −5.0 to +1.7 | 458 (rough estimate) |
| Dudley (DY) | 14.9 | 16.7 | −1.8 | −7.3 to +3.7 | 161 (rough estimate) |
| Hemel Hempstead (HP) | 14.5 | 16.7 | −2.2 | −6.8 to +2.5 | 227 (rough estimate) |
| Medway (ME) | 14.5 | 16.7 | −2.2 | −6.0 to +1.6 | 331 (rough estimate) |
| Stockport (SK) | 14.4 | 16.7 | −2.3 | −8.2 to +3.6 | 139 (rough estimate) |
| Liverpool (L) | 14.3 | 16.7 | −2.4 | −8.1 to +3.3 | 147 (rough estimate) |
| Cambridge (CB) | 14.1 | 16.7 | −2.6 | −8.1 to +2.9 | 156 (rough estimate) |
| Swansea (SA) | 14.1 | 16.7 | −2.6 | −8.4 to +3.1 | 142 (rough estimate) |
| Kingston upon Thames (KT) | 13.9 | 16.7 | −2.8 | −8.9 to +3.4 | 122 (rough estimate) |
| Tonbridge (TN) | 13.9 | 16.7 | −2.8 | −6.4 to +0.8 | 359 (rough estimate) |
| Blackburn (BB) | 13.8 | 16.7 | −2.8 | −8.8 to +3.1 | 130 (rough estimate) |
| Northampton (NN) | 13.7 | 16.7 | −3.0 | −7.9 to +1.9 | 190 (rough estimate) |
| London N (N) | 13.5 | 16.7 | −3.2 | −9.8 to +3.4 | 104 (rough estimate) |
| Durham (DH) | 13.4 | 16.7 | −3.3 | −9.6 to +3.0 | 112 (rough estimate) |
| Derby (DE) | 13.1 | 16.7 | −3.7 | −7.6 to +0.3 | 283 (rough estimate) |
| London SE (SE) | 13.0 | 16.7 | −3.7 | −9.2 to +1.8 | 146 (rough estimate) |
| Doncaster (DN) | 12.9 | 16.7 | −3.8 | −8.8 to +1.2 | 178 (rough estimate) |
| Glasgow (G) | 12.8 | 16.7 | −3.9 | −9.8 to +2.0 | 125 (rough estimate) |
| Newcastle (NE) | 12.7 | 16.8 | −4.1 | −7.8 to −0.4 | 324 (rough estimate) |
| Southend-on-Sea (SS) | 12.7 | 16.8 | −4.1 | −7.2 to −1.0 | 458 (rough estimate) |
| Motherwell (ML) | 12.1 | 16.7 | −4.6 | −10.4 to +1.2 | 124 (rough estimate) |
| Twickenham (TW) | 12.0 | 16.7 | −4.7 | −9.8 to +0.4 | 158 (rough estimate) |
| Stevenage (SG) | 12.0 | 16.7 | −4.7 | −9.7 to +0.2 | 167 (rough estimate) |
| Sheffield (S) | 11.0 | 16.8 | −5.8 | −9.0 to −2.6 | 382 (rough estimate) |
| York (YO) | 10.8 | 16.7 | −5.9 | −10.4 to −1.4 | 185 (rough estimate) |
| Enfield (EN) | 9.2 | 16.7 | −7.5 | −12.7 to −2.2 | 119 (rough estimate) |
| Slough (SL) | 9.0 | 16.7 | −7.8 | −12.3 to −3.3 | 156 (rough estimate) |
| Romford (RM) | 8.5 | 16.8 | −8.3 | −11.6 to −5.0 | 281 (rough estimate) |
| Kilmarnock (KA) | 7.6 | 16.7 | −9.1 | −13.5 to −4.7 | 144 (rough estimate) |
| Bolton (BL) | 7.4 | 16.7 | −9.3 | −14.0 to −4.6 | 121 (rough estimate) |
| Crewe (CW) | 7.3 | 16.8 | −9.5 | −13.7 to −5.3 | 151 (rough estimate) |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 17,679 (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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