Lexus Is vs Lexus Gs300: MOT reliability compared
Updated 05 September 2026.
12.9%
Lexus Is MOT failure rate, 10.2 pts lower than Lexus Gs300
Lexus Is is the more reliable MOT performer: 12.9% of Lexus Is MOTs fail versus 23.1% for Lexus Gs300, a 10.2 point gap.
| Metric | Lexus Is | Lexus Gs300 |
|---|---|---|
| MOT failure rate | 12.9% | 23.1% |
| Tests analysed | 181,237 | 175,987 |
| Most common failure | Tyres (38.3%) | Brakes (29.3%) |
Questions and answers
Which is more reliable, Lexus Is or Lexus Gs300?
Lexus Is is the more reliable MOT performer: 12.9% of Lexus Is MOTs fail versus 23.1% for Lexus Gs300, a 10.2 point gap.
What is the MOT failure rate of the Lexus Is?
12.9% of Lexus Is MOT tests result in a failure, from 181,237 tests.
What is the MOT failure rate of the Lexus Gs300?
23.1% of Lexus Gs300 MOT tests result in a failure, from 175,987 tests.