Jaguar Xj vs Jaguar Xk8 coupe auto: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Jaguar Xj
77%
MOT pass rate · 80,612 vehicles
Jaguar Xk8 coupe auto
80%
MOT pass rate · 312 vehicles
More reliable
Verdict: On MOT pass rate, the Jaguar Xk8 coupe auto is the more reliable of the two — 80% pass first time versus 77%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Jaguar Xj | Jaguar Xk8 coupe auto |
|---|---|---|
| MOT pass rate | 77% | 80% ✓ |
| MOT failure rate | 23% | 20% ✓ |
| Faults & advisories per test | 2.0 | 0.0 ✓ |
| Dangerous-fault share | 1% | — ✓ |
| Average mileage | 113,306 mi | 92,477 mi |
| Sample size (vehicles) | 80,612 | 312 |
Most common faults
Jaguar Xj
- 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)
- Nearside Front 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 wheel bearing has slight play (2.5.A.3c)
- Offside Front wheel bearing has slight play (2.5.A.3c)
Jaguar Xk8 coupe auto
No fault breakdown available.
Reliability FAQ
On MOT pass rate, the Jaguar Xk8 coupe auto is the more reliable of the two — 80% pass first time versus 77%. It's one signal among several; check the full breakdown below.
Full Jaguar Xj report Full Jaguar Xk8 coupe auto 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.