Lexus CT years to avoid — 89,853 MOT tests ranked

No clear negative outlier after correcting for age. Strongest in the data: 2011 or 2012. The ranking uses 89,853 MOT tests across 10 registration years (2023–2025) and compares each year with all UK cars of the same age.

Every CT year, ranked

The age-adjusted MOT index sets 100 as the pass rate of all UK cars registered in the same year and tested in the same calendar year. Higher is better. This prevents an old car being labelled a “bad year” simply because it is old.

RankYearIndexVs same-agePass rateTests
1 2011 Strong 114.6 +14.6 pts 83.8% 10,554
2 2012 Strong 113.8 +13.8 pts 85.0% 11,748
3 2014 113.6 +13.6 pts 89.4% 11,237
4 2013 112.4 +12.4 pts 85.7% 10,899
5 2015 110.7 +10.7 pts 89.4% 10,368
6 2016 110.1 +10.1 pts 91.4% 8,741
7 2017 107.9 +7.9 pts 91.9% 8,779
8 2018 106.3 +6.3 pts 92.6% 8,077
9 2020 104.8 +4.8 pts 94.7% 3,753
10 2019 104.5 +4.5 pts 92.9% 5,697

How to use this before buying

  • Rankings describe the cohort, not the car. A cherished older example beats a neglected 2011 one — always run the specific reg through the free MOT history check.
  • Read the advisories. Repeated notes for the same component across years mean the owner has been ignoring it. Decode them in our advisory library.
  • Scan before you pay. A 2-minute OBD scan reveals stored faults the dashboard hides — see our scanner guide.

FAQs

Which CT years should I avoid?

No year is a clear negative outlier after correcting for age, so buy on condition and history rather than year.

What is the best CT year to buy used?

2011 and 2012 lead the age-adjusted MOT ranking. The score compares each registration year with all UK cars of the same age; the specific car's history and condition still take priority.

Is the CT reliable overall?

Across 89,853 tests, the median age-adjusted index is 110.4 (100 equals the pass rate of all cars registered in the same year). Use the spread between years as one signal, then check the individual registration.

Methodology: index = 100 + the model-year cohort’s MOT pass-rate difference versus all UK vehicles registered in the same year and tested in the same calendar year. Class 4 initial tests only; retests excluded; at least 1,500 tests per page. “Inspect” years are below both the same-age baseline and the model’s median index by at least 2 points. Association is not proof of a model-year defect. DVSA anonymised data 2023–2025, OGL v3.0.