Data as of: DVSA MOT results to 2025
Lambretta LI150: MOT pass rate by registration year
Which LI150 years pass first time, and which fall short of the model's 88.8% average, from 19,294 DVSA tests.
Pass rate by registration year
Highest pass rate: 2006 (95.2% of 62 tests). Lowest: 1970 (79.2% of 130). Years more than two points below the model average: 1970, 1974, 1976, 1978.
| Registered | Tests | First-time pass | vs model (88.8%) |
|---|---|---|---|
| 1958 | 235 | 90.2% | +1.4 pp |
| 1959 | 782 | 87.9% | -0.9 pp |
| 1960 | 2,085 | 90.2% | +1.4 pp |
| 1961 | 1,314 | 89.0% | +0.2 pp |
| 1962 | 2,225 | 89.6% | +0.8 pp |
| 1963 | 2,253 | 88.5% | -0.3 pp |
| 1964 | 2,823 | 89.3% | +0.5 pp |
| 1965 | 2,426 | 87.4% | -1.4 pp |
| 1966 | 1,714 | 87.4% | -1.4 pp |
| 1967 | 435 | 89.9% | +1.1 pp |
| 1968 | 402 | 89.3% | +0.5 pp |
| 1969 | 203 | 89.2% | +0.4 pp |
| 1970 | 130 | 79.2% | -9.6 pp |
| 1971 | 684 | 89.8% | +1.0 pp |
| 1972 | 182 | 89.0% | +0.2 pp |
| 1973 | 94 | 89.4% | +0.6 pp |
| 1974 | 56 | 85.7% | -3.1 pp |
| 1975 | 62 | 87.1% | -1.7 pp |
| 1976 | 101 | 81.2% | -7.6 pp |
| 1977 | 70 | 87.1% | -1.7 pp |
| 1978 | 136 | 83.1% | -5.7 pp |
| 1979 | 115 | 91.3% | +2.5 pp |
| 1980 | 77 | 92.2% | +3.4 pp |
| 2006 | 62 | 95.2% | +6.4 pp |
| 2008 | 53 | 88.7% | -0.1 pp |
Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years. A first-time MOT pass is a roadworthiness check, not a full mechanical inspection.
Pass rate over time
Questions
- Which LI150 years have the lowest MOT pass rate?
- 1970, 1974, 1976, 1978 registered examples pass first time less often than the Lambretta LI150 overall (88.8%); the 1970 cohort is lowest at 79.2% from 130 tests.
- Which LI150 year has the highest MOT pass rate?
- 2006, at 95.2% of 62 first tests (2005–2025). Years more than two points above the model average: 1979, 1980, 2006.
- How much does the LI150 pass rate vary by year?
- 16.0 percentage points between the highest (2006, 95.2%) and lowest (1970, 79.2%) cohorts with at least 50 tests. Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
Full report: Lambretta LI150 reliability, failures and mileage · ranked #1332 of 5428 models· other Lambretta models: LI125, GP200, GP150, GP125, Li, SX200