Lexus Is200 vs Lexus Rx450h: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Lexus Is200
75%
MOT pass rate · 35,381 vehicles
Lexus Rx450h
84%
MOT pass rate · 8,028 vehicles
More reliable
Verdict: On MOT pass rate, the Lexus Rx450h is the more reliable of the two — 84% pass first time versus 75%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Lexus Is200 | Lexus Rx450h |
|---|---|---|
| MOT pass rate | 75% | 84% ✓ |
| MOT failure rate | 25% | 16% ✓ |
| Faults & advisories per test | 1.7 | 1.5 ✓ |
| Dangerous-fault share | 1% ✓ | 2% |
| Average mileage | 128,648 mi | 121,085 mi |
| Sample size (vehicles) | 35,381 | 8,028 |
Most common faults
Lexus Is200
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Rear Brake pad(s) wearing thin (3.5.1g)
- Under-trays fitted obscuring some underside components
Lexus Rx450h
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Engine covers fitted obscuring some components in the engine bay
- Under-trays fitted obscuring some underside components
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
- Offside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))
Reliability FAQ
On MOT pass rate, the Lexus Rx450h is the more reliable of the two — 84% pass first time versus 75%. It's one signal among several; check the full breakdown below.
Full Lexus Is200 report Full Lexus Rx450h report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.