Jaguar S-type vs Jaguar Xj8 sovereign: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Jaguar S-type
75%
MOT pass rate · 61,983 vehicles
Jaguar Xj8 sovereign
80%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Jaguar S-type (75%) and Jaguar Xj8 sovereign (80%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Jaguar S-type | Jaguar Xj8 sovereign |
|---|---|---|
| MOT pass rate | 75% | 80% ✓ |
| MOT failure rate | 25% | 20% ✓ |
| Faults & advisories per test | 2.1 | 1.8 ✓ |
| Dangerous-fault share | 1% | 0% ✓ |
| Average mileage | 114,746 mi | 34,876 mi |
| Sample size (vehicles) | 61,983 | 1 |
Most common faults
Jaguar S-type
- 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)
- Under-trays fitted obscuring some underside components
- Front Brake pad(s) wearing thin (3.5.1g)
Jaguar Xj8 sovereign
- Front Registration plate deteriorated but not likely to be misread (0.1 (b))
- Nearside Front coil spring corroded (2.4.C.1b)
- Offside Front coil spring corroded (2.4.C.1b)
- 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 Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
Reliability FAQ
On MOT pass rate the Jaguar S-type (75%) and Jaguar Xj8 sovereign (80%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Jaguar S-type report Full Jaguar Xj8 sovereign 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.