MOT performance
Lexus NX vs Jaguar I-Pace: MOT pass rates compared
In 2023–2024, 90.4% of 53,608 Lexus NX MOT tests and 91.8% of 30,624 Jaguar I-Pace tests passed first time — 1.4 points in favour of the Jaguar I-Pace. Once age, mileage and fuel are allowed for, the Jaguar I-Pace fails less often than the Lexus NX: 0.58× against 0.71× the national rate for comparable cars.
53,608 Lexus NX and 30,624 Jaguar I-Pace MOT tests, 2023–2024
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| Figure | Value | Basis |
|---|---|---|
| Lexus NX: first-time pass rate | 90.4% | ±0.2 pts (95%), n = 53,608 |
| Jaguar I-Pace: first-time pass rate | 91.8% | ±0.3 pts (95%), n = 30,624 |
| Lexus NX: failures vs similar cars | -29% | same age, mileage and fuel = 1.00 |
| Jaguar I-Pace: failures vs similar cars | -42% | same age, mileage and fuel = 1.00 |
| Lexus NX: dangerous defect | 2.5% | n = 53,608 |
| Jaguar I-Pace: dangerous defect | 2.3% | n = 30,624 |
| Average age at test | 5 vs 3 years | Lexus NX vs Jaguar I-Pace |
Why the raw pass rates can mislead
The Lexus NX was tested at an older average age (5 years against 3), and older cars fail more often whatever they are. That is why the table above also shows failures against cars of the same age, mileage and fuel: it compares the models, not their fleets.
Failure areas side by side
Share of MOT tests that failed on each area, and in brackets how that compares with cars of the same age, mileage and fuel (1.00 = national average). The clearest difference is steering, where the Jaguar I-Pace fails 51.3 times as often on an adjusted basis.
| Area | Lexus NX | Jaguar I-Pace |
|---|---|---|
| Brakes | 1.1% (-35%) | 0.5% (-47%) |
| Steering | 0.0% (-90%) | 0.8% (+434%) |
| Suspension | 0.9% (-36%) | 0.2% (-87%) |
| Tyres | 3.4% (-33%) | 4.6% (-44%) |
| Road wheels | 0.1% (-62%) | 0.1% (-44%) |
| Lights, reflectors and electrical | 1.6% (-56%) | 1.5% (-43%) |
| Body, chassis and structure | 0.2% (-10%) | 0.1% (-53%) |
| Driver's view of the road | 3.2% (Same) | 0.8% (-66%) |
| Noise, emissions and leaks | 0.0% (-91%) | 0.0% (-65%) |
| Seat belts and airbags | 0.2% (+21%) | 0.2% (-15%) |
| Registration plates and VIN | 0.2% (+1%) | 0.4% (+54%) |
Pass rate at the same age
Comparing cars of the same age removes most of the fleet-age effect from the raw rates.
| Age at test | Lexus NX | Jaguar I-Pace |
|---|---|---|
| 3-4 years | 92.5% (n = 16,898) | 92.0% (n = 18,006) |
| 5-6 years | 89.0% (n = 15,476) | 89.5% (n = 2,414) |
Most common failure item
- Lexus NX · wipers: does not clear the windscreen effectively (2.82% of tests)
- Jaguar I-Pace · condition: has a cut in excess of the requirements deep enough to reach the ply or cords (2.38% of tests)
MOT results reflect how cars are maintained as well as how they are built, so a gap between two models is a difference in test performance, not proof that one is more reliable. For one car, its own MOT history says more than any average.
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About this data. These are MOT test results, not a measure of mechanical reliability: a car's MOT outcome reflects its condition on the day, which depends on how it has been maintained and driven as well as how it was built. Figures cover class 4 vehicles (cars and light vans), normal tests only (retests excluded), outcomes pass, fail and pass after rectification at the station; vehicles at least 2.5 years old at test. Tests from 2023-01-01 to 2024-12-30. “Compared with similar cars” means compared with the national rate for cars of the same age, mileage band and fuel. Contains public sector information licensed under the Open Government Licence v3.0. Makes and models are matched to 73 Auto's vehicle catalogue; tests that can't be matched are left out rather than guessed. See how the MOT figures are produced.