Car statistics
Ford Sierra RS Cosworth statistics
How many Ford Sierra RS Cosworths are still on the road in Great Britain, how many are declared off the road, and how the RS Cosworth compares with other versions of the Ford Sierra. Built from DVLA licensing records, with MOT results for the Ford Sierra.
- Licensed in Great Britain 687 −3.4% on a year earlier
- Declared SORN 2,069 Off the road, not taxed
- Still registered 56.5% Other Ford Sierra versions 0.9%
- Licensed in 1994 4,845 when this data begins
- Share of Ford Sierras 22.8% of those licensed or SORN
- Declared off the road 75.1% of those still registered are SORN
How many Ford Sierra RS Cosworths are left in Great Britain?
There were 687 Ford Sierra RS Cosworths licensed in Great Britain at the end of June 2026, and a further 2,069 declared off the road (SORN). The licensed count is 85.8% lower than the 4,845 in 1994, when this data begins. More are declared SORN than are licensed: 75.1% of those still registered are off the road.
Ford Sierra RS Cosworths licensed and SORN in Great Britain
This data records SORN from 2007, so the SORN line starts there.
| Year | Licensed | Declared SORN |
|---|---|---|
| 1994 | 4,845 | – |
| 1995 | 4,528 | – |
| 1996 | 4,347 | – |
| 1997 | 4,009 | – |
| 1998 | 3,686 | – |
| 1999 | 3,387 | – |
| 2000 | 2,943 | – |
| 2001 | 2,707 | – |
| 2002 | 2,502 | – |
| 2003 | 2,276 | – |
| 2004 | 2,077 | – |
| 2005 | 1,847 | – |
| 2006 | 1,554 | – |
| 2007 | 1,392 | 1,446 |
| 2008 | 1,163 | 1,504 |
| 2009 | 1,040 | 1,486 |
| 2010 | 832 | 1,588 |
| 2011 | 752 | 1,636 |
| 2012 | 665 | 1,607 |
| 2013 | 576 | 1,916 |
| 2014 | 576 | 1,900 |
| 2015 | 587 | 1,950 |
| 2016 | 553 | 2,025 |
| 2017 | 544 | 2,114 |
| 2018 | 490 | 2,184 |
| 2019 | 482 | 2,216 |
| 2020 | 438 | 2,263 |
| 2021 | 443 | 2,274 |
| 2022 | 469 | 2,269 |
| 2023 | 432 | 2,284 |
| 2024 | 420 | 2,282 |
| 2025 | 405 | 2,314 |
| 2026 | 687 | 2,069 |
Source:DfT / DVLA End of June 2026 Updated
Fuel type
Source:DfT / DVLA End of June 2026 Updated
How many Ford Sierra RS Cosworths have survived?
56.5% of Ford Sierra RS Cosworths are still registered (licensed or SORN), measured against the most on the road at any year end since 1994. For other versions of the Ford Sierra from the same era, the figure is 0.9%, so Ford Sierra RS Cosworths are 64.1 times as likely to have survived.
Share still registered (licensed or SORN)
Compared with 42 other versions of the Ford Sierra from the same era.
| Version | Share still registered |
|---|---|
| Ford Sierra RS Cosworth | 56.5% |
| Other Ford Sierra versions of the same age | 0.9% |
Source:DfT / DVLA End of June 2026 Updated
Ford Sierra RS Cosworth engine sizes and fuel types
Of the 414 Ford Sierra RS Cosworths licensed in the UK at the end of 2025, 99.5% have an engine of 1,901cc to 2,000cc, and 0.5% have an engine of 2,001cc to 2,100cc.
Engine sizes, end of 2025
DVLA records engine size in 100cc bands.
| Engine size | Share of those licensed |
|---|---|
| 1,901cc to 2,000cc 412 licensed | 99.5% |
| 2,001cc to 2,100cc 2 licensed | 0.5% |
Source:DfT / DVLA End of 2014 to end of 2025 Updated
United Kingdom figures from DfT table VEH0220 (licensed cars at the end of each year, SORN excluded), so they differ slightly from the Great Britain counts elsewhere on this page. This covers cars DVLA records under this version’s name only; the Ford Sierra page covers every version. How we use engine sizes.
Ford Sierra MOT reliability
In 2025, 88.3% of Ford Sierra MOT tests were passed first time, against 72.8% for all cars. Cars of the same ages pass 61.0% of the time, so the Ford Sierra does better than average for its age, by 27.3 points.
DVSA's MOT results name the model, not the version, so these figures cover all Ford Sierras tested, the RS Cosworth among them. For the full breakdown, including defects in detail and results year by year, see the Ford Sierra page.
MOT first-time pass rate by age: Ford Sierra vs all cars
Each bar pair covers cars of the same age, so an older fleet does not count against the model.
| Vehicle age | Ford Sierra | All cars |
|---|---|---|
| 20+ years | 88.3% | 61.0% |
Source:DVSA,UK Motoring analysis 2025 Updated
Most common MOT failure categories
Lamps, reflectors and electrical equipment is the most common reason a Ford Sierra fails. A failed test can have defects in more than one category.
| Defect category | Share of failed tests |
|---|---|
| Lamps, reflectors and electrical equipment | 40.9% |
| Noise, emissions and leaks | 27.7% |
| Suspension | 26.4% |
| Brakes | 23.4% |
| Body, chassis, structure | 20.1% |
| Visibility | 17.2% |
Source:DVSA,UK Motoring analysis 2025 Updated
Other versions of the Ford Sierra
Versions of the Ford Sierra with their own page. The Ford Sierra page covers all 2,231 licensed, whatever the version.
| Version | Licensed | SORN | Still registered |
|---|---|---|---|
| Ford Sierra RS Cosworth | 687 | 2,069 | 56.5% |
| Ford Sierra Sapphire Cosworth | 361 | 1,062 | 49.0% |
| Ford Sierra XR4x4 | 170 | 1,136 | 7.1% |
| Ford Sierra XR4i | 283 | 600 | 11.8% |
| Ford Sierra Ghia 4x4 | 21 | 190 | 3.6% |
| Ford Sierra Sapphire Azura | 22 | 120 | 2.7% |
| Ford Sierra GLS 4x4 | 10 | 92 | 6.4% |
Data stories to read next
Data sources and methodology
| Figures | Source | Period | Records | Updated |
|---|---|---|---|---|
| Licensed and SORN counts | Vehicle licensing statistics Department for Transport | End of June 2026 | 2,756 Ford Sierra RS Cosworth records (licensed and SORN) | 2 October 2026 |
| MOT results (whole model) | Anonymised MOT tests and results Driver and Vehicle Standards Agency Derived statistics UK Motoring | 2025 | 2,592 MOT tests | 15 September 2026 |
- Figures cover Great Britain (England, Scotland and Wales). Northern Ireland is not included.
- Licensed counts are vehicles with a current tax or exemption at the end of each year (or the latest quarter). SORN counts are shown separately, from 2007.
- This version groups DVLA’s detailed model names “SIERRA RS COSWORTH”. Engine size, gearbox, number of doors and fuel are ignored, so every engine and gearbox counts together.
- Survival compares the number still registered (licensed or SORN) with the most licensed at any year end since 1994, plus any first registered after that year. Other versions are those of the same model whose licensed count peaked in the same years, up to 2001.
Contains public sector information licensed under the Open Government Licence v3.0.