Which Rolls models fail their MOT less for their age?
In 2024, 93.3% of MOTs on the 6 Rolls models published here passed (91.8% first time, 1.4% after a fix at the test centre), from 4,623 first tests. Allowing for age (not mileage), these Rolls models fail 73% less often than normal: brand MOT Risk Index 27.3 (95% CI 24.8–30.0; 100 = normal).
No single Rolls model has 10,000 first tests, so none is named best or worst here; every model's figure is in the chart and the table (the brand index uses all 4,623 tests).
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 25 Sep 2026 · full dataset (v5).
Which Rolls models fail least and most for their age?
Of the 6 Rolls models, 6 fail less often than normal for their age, 0 more often, and 0 cannot be told apart from normal because their 95% intervals include 100.
| Model | MOT pass rate, % | Passed first time, % | MOT Risk Index | 95% interval | First tests |
|---|---|---|---|---|---|
| Rolls-Royce Phantom | 97.2 | 96.5 | 10.2 | 7.2–14.5 | 847 |
| Rolls-Royce Ghost | 96.2 | 95.3 | 16.4 | 12.1–22.0 | 850 |
| Rolls-Royce Wraith | 97.2 | 95.7 | 19.0 | 12.9–27.7 | 579 |
| Rolls-Royce Cullinan | 97.4 | 97.0 | 21.4 | 10.9–41.4 | 268 |
| Rolls-Royce Dawn | 94.5 | 94.5 | 29.7 | 20.3–43.2 | 453 |
| Rolls-Royce Silver Shadow | 87.3 | 84.7 | 42.2 | 37.6–47.2 | 1,626 |
Source: DVSA MOT bulk data · Window: 2024 · n = 4,623 (initial tests) · Method: MOT Risk Index = observed first-time failures ÷ failures expected for the same age profile × 100; brand index sums both over the 6 models · Updated: 25 Sep 2026 · Release: dvsa-2024-v2 · CSV
Where are Rolls models worse than other cars of the same age?
No failure group stands out as worse: allowing for age, Rolls models are not clearly worse (by 5% or more) than other cars of the same age in any group (2019–2024 MOTs).
| Failure group | Rolls, per 100 tests | Expected for the same age | Difference | 95% interval | Most common failure on (models) |
|---|---|---|---|---|---|
| Identification of the vehicle | 0.5 | 0.5 | -0.1 | -0.14 to 0.02 | 0 of 6 |
| Road Wheels | 0.0 | 0.3 | -0.3 | -0.33 to -0.28 | 0 of 6 |
| Seat belts and supplementary restraint systems | 0.6 | 2.0 | -1.4 | -1.51 to -1.33 | 0 of 6 |
| Steering | 1.2 | 4.5 | -3.4 | -3.50 to -3.24 | 0 of 6 |
| Tyres | 3.0 | 6.6 | -3.6 | -3.82 to -3.40 | 4 of 6 |
| Noise, emissions and leaks | 1.4 | 5.0 | -3.7 | -3.80 to -3.52 | 0 of 6 |
| Visibility | 3.0 | 8.8 | -5.8 | -5.98 to -5.56 | 0 of 6 |
| Brakes | 7.2 | 14.3 | -7.2 | -7.50 to -6.86 | 2 of 6 |
| Body, chassis, structure | 1.2 | 9.0 | -7.7 | -7.88 to -7.61 | 0 of 6 |
| Suspension | 4.4 | 15.6 | -11.2 | -11.46 to -10.96 | 0 of 6 |
| Lamps, reflectors and electrical equipment | 5.6 | 20.8 | -15.2 | -15.51 to -14.95 | 0 of 6 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 27,016 (initial tests of the 6 models) · Method: failure items per 100 tests against the rate expected for the same age and kind of vehicle; interval from the count of failures (Poisson); a group is named only when its interval is wholly above zero and it is at least 5% above the expected rate · Updated: 25 Sep 2026 · Release: dvsa-2024-v2 · CSV
How to cite this page
MOT Risk Index (2026). Rolls MOT statistics by model 2024 (data release dvsa-2024-v2; full dataset motriskindex-families-2024-v5, DOI 10.5281/zenodo.22975051), updated 25 September 2026. motriskindex.co.uk/cars/brand/rolls/
How the MOT Risk Index and every figure on this page are calculated: methodology.
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